From 164b856a43b1cfcde7b30ee2d8b9a2ae4a92d377 Mon Sep 17 00:00:00 2001 From: Lloyd Hilaiel <lloyd@hilaiel.com> Date: Thu, 24 May 2012 12:40:17 -0600 Subject: [PATCH] move to unminified underscore.js to fix resource compression. closes #1642 --- lib/static_resources.js | 4 +- resources/static/lib/underscore-min.js | 32 - resources/static/lib/underscore.js | 1059 ++++++++++++++++++++++++ resources/views/test.ejs | 2 +- 4 files changed, 1062 insertions(+), 35 deletions(-) delete mode 100644 resources/static/lib/underscore-min.js create mode 100644 resources/static/lib/underscore.js diff --git a/lib/static_resources.js b/lib/static_resources.js index 92f5c95ce..fbf8545eb 100644 --- a/lib/static_resources.js +++ b/lib/static_resources.js @@ -18,7 +18,7 @@ var i18n = require('./i18n'), var common_js = [ '/lib/jquery-1.7.1.min.js', '/lib/winchan.js', - '/lib/underscore-min.js', + '/lib/underscore.js', '/lib/bidbundle.js', '/lib/ejs.js', '/lib/micrajax.js', @@ -121,7 +121,7 @@ exports.resources = { '/production/communication_iframe.js': [ '/lib/jschannel.js', '/lib/winchan.js', - '/lib/underscore-min.js', + '/lib/underscore.js', '/lib/bidbundle.js', '/lib/hub.js', '/lib/micrajax.js', diff --git a/resources/static/lib/underscore-min.js b/resources/static/lib/underscore-min.js deleted file mode 100644 index 5a0cb3b00..000000000 --- a/resources/static/lib/underscore-min.js +++ /dev/null @@ -1,32 +0,0 @@ -// Underscore.js 1.3.3 -// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc. -// Underscore is freely distributable under the MIT license. -// Portions of Underscore are inspired or borrowed from Prototype, -// Oliver Steele's Functional, and John Resig's Micro-Templating. -// For all details and documentation: -// http://documentcloud.github.com/underscore -(function(){function r(a,c,d){if(a===c)return 0!==a||1/a==1/c;if(null==a||null==c)return a===c;a._chain&&(a=a._wrapped);c._chain&&(c=c._wrapped);if(a.isEqual&&b.isFunction(a.isEqual))return a.isEqual(c);if(c.isEqual&&b.isFunction(c.isEqual))return c.isEqual(a);var e=l.call(a);if(e!=l.call(c))return!1;switch(e){case "[object String]":return a==""+c;case "[object Number]":return a!=+a?c!=+c:0==a?1/a==1/c:a==+c;case "[object Date]":case "[object Boolean]":return+a==+c;case "[object RegExp]":return a.source== -c.source&&a.global==c.global&&a.multiline==c.multiline&&a.ignoreCase==c.ignoreCase}if("object"!=typeof a||"object"!=typeof c)return!1;for(var f=d.length;f--;)if(d[f]==a)return!0;d.push(a);var f=0,g=!0;if("[object Array]"==e){if(f=a.length,g=f==c.length)for(;f--&&(g=f in a==f in c&&r(a[f],c[f],d)););}else{if("constructor"in a!="constructor"in c||a.constructor!=c.constructor)return!1;for(var h in a)if(b.has(a,h)&&(f++,!(g=b.has(c,h)&&r(a[h],c[h],d))))break;if(g){for(h in c)if(b.has(c,h)&&!f--)break; -g=!f}}d.pop();return g}var s=this,I=s._,o={},k=Array.prototype,p=Object.prototype,i=k.slice,J=k.unshift,l=p.toString,K=p.hasOwnProperty,y=k.forEach,z=k.map,A=k.reduce,B=k.reduceRight,C=k.filter,D=k.every,E=k.some,q=k.indexOf,F=k.lastIndexOf,p=Array.isArray,L=Object.keys,t=Function.prototype.bind,b=function(a){return new m(a)};"undefined"!==typeof exports?("undefined"!==typeof module&&module.exports&&(exports=module.exports=b),exports._=b):s._=b;b.VERSION="1.3.3";var j=b.each=b.forEach=function(a, -c,d){if(a!=null)if(y&&a.forEach===y)a.forEach(c,d);else if(a.length===+a.length)for(var e=0,f=a.length;e<f;e++){if(e in a&&c.call(d,a[e],e,a)===o)break}else for(e in a)if(b.has(a,e)&&c.call(d,a[e],e,a)===o)break};b.map=b.collect=function(a,c,b){var e=[];if(a==null)return e;if(z&&a.map===z)return a.map(c,b);j(a,function(a,g,h){e[e.length]=c.call(b,a,g,h)});if(a.length===+a.length)e.length=a.length;return e};b.reduce=b.foldl=b.inject=function(a,c,d,e){var f=arguments.length>2;a==null&&(a=[]);if(A&& -a.reduce===A){e&&(c=b.bind(c,e));return f?a.reduce(c,d):a.reduce(c)}j(a,function(a,b,i){if(f)d=c.call(e,d,a,b,i);else{d=a;f=true}});if(!f)throw new TypeError("Reduce of empty array with no initial value");return d};b.reduceRight=b.foldr=function(a,c,d,e){var f=arguments.length>2;a==null&&(a=[]);if(B&&a.reduceRight===B){e&&(c=b.bind(c,e));return f?a.reduceRight(c,d):a.reduceRight(c)}var g=b.toArray(a).reverse();e&&!f&&(c=b.bind(c,e));return f?b.reduce(g,c,d,e):b.reduce(g,c)};b.find=b.detect=function(a, -c,b){var e;G(a,function(a,g,h){if(c.call(b,a,g,h)){e=a;return true}});return e};b.filter=b.select=function(a,c,b){var e=[];if(a==null)return e;if(C&&a.filter===C)return a.filter(c,b);j(a,function(a,g,h){c.call(b,a,g,h)&&(e[e.length]=a)});return e};b.reject=function(a,c,b){var e=[];if(a==null)return e;j(a,function(a,g,h){c.call(b,a,g,h)||(e[e.length]=a)});return e};b.every=b.all=function(a,c,b){var e=true;if(a==null)return e;if(D&&a.every===D)return a.every(c,b);j(a,function(a,g,h){if(!(e=e&&c.call(b, -a,g,h)))return o});return!!e};var G=b.some=b.any=function(a,c,d){c||(c=b.identity);var e=false;if(a==null)return e;if(E&&a.some===E)return a.some(c,d);j(a,function(a,b,h){if(e||(e=c.call(d,a,b,h)))return o});return!!e};b.include=b.contains=function(a,c){var b=false;if(a==null)return b;if(q&&a.indexOf===q)return a.indexOf(c)!=-1;return b=G(a,function(a){return a===c})};b.invoke=function(a,c){var d=i.call(arguments,2);return b.map(a,function(a){return(b.isFunction(c)?c||a:a[c]).apply(a,d)})};b.pluck= -function(a,c){return b.map(a,function(a){return a[c]})};b.max=function(a,c,d){if(!c&&b.isArray(a)&&a[0]===+a[0])return Math.max.apply(Math,a);if(!c&&b.isEmpty(a))return-Infinity;var e={computed:-Infinity};j(a,function(a,b,h){b=c?c.call(d,a,b,h):a;b>=e.computed&&(e={value:a,computed:b})});return e.value};b.min=function(a,c,d){if(!c&&b.isArray(a)&&a[0]===+a[0])return Math.min.apply(Math,a);if(!c&&b.isEmpty(a))return Infinity;var e={computed:Infinity};j(a,function(a,b,h){b=c?c.call(d,a,b,h):a;b<e.computed&& -(e={value:a,computed:b})});return e.value};b.shuffle=function(a){var b=[],d;j(a,function(a,f){d=Math.floor(Math.random()*(f+1));b[f]=b[d];b[d]=a});return b};b.sortBy=function(a,c,d){var e=b.isFunction(c)?c:function(a){return a[c]};return b.pluck(b.map(a,function(a,b,c){return{value:a,criteria:e.call(d,a,b,c)}}).sort(function(a,b){var c=a.criteria,d=b.criteria;return c===void 0?1:d===void 0?-1:c<d?-1:c>d?1:0}),"value")};b.groupBy=function(a,c){var d={},e=b.isFunction(c)?c:function(a){return a[c]}; -j(a,function(a,b){var c=e(a,b);(d[c]||(d[c]=[])).push(a)});return d};b.sortedIndex=function(a,c,d){d||(d=b.identity);for(var e=0,f=a.length;e<f;){var g=e+f>>1;d(a[g])<d(c)?e=g+1:f=g}return e};b.toArray=function(a){return!a?[]:b.isArray(a)||b.isArguments(a)?i.call(a):a.toArray&&b.isFunction(a.toArray)?a.toArray():b.values(a)};b.size=function(a){return b.isArray(a)?a.length:b.keys(a).length};b.first=b.head=b.take=function(a,b,d){return b!=null&&!d?i.call(a,0,b):a[0]};b.initial=function(a,b,d){return i.call(a, -0,a.length-(b==null||d?1:b))};b.last=function(a,b,d){return b!=null&&!d?i.call(a,Math.max(a.length-b,0)):a[a.length-1]};b.rest=b.tail=function(a,b,d){return i.call(a,b==null||d?1:b)};b.compact=function(a){return b.filter(a,function(a){return!!a})};b.flatten=function(a,c){return b.reduce(a,function(a,e){if(b.isArray(e))return a.concat(c?e:b.flatten(e));a[a.length]=e;return a},[])};b.without=function(a){return b.difference(a,i.call(arguments,1))};b.uniq=b.unique=function(a,c,d){var d=d?b.map(a,d):a, -e=[];a.length<3&&(c=true);b.reduce(d,function(d,g,h){if(c?b.last(d)!==g||!d.length:!b.include(d,g)){d.push(g);e.push(a[h])}return d},[]);return e};b.union=function(){return b.uniq(b.flatten(arguments,true))};b.intersection=b.intersect=function(a){var c=i.call(arguments,1);return b.filter(b.uniq(a),function(a){return b.every(c,function(c){return b.indexOf(c,a)>=0})})};b.difference=function(a){var c=b.flatten(i.call(arguments,1),true);return b.filter(a,function(a){return!b.include(c,a)})};b.zip=function(){for(var a= -i.call(arguments),c=b.max(b.pluck(a,"length")),d=Array(c),e=0;e<c;e++)d[e]=b.pluck(a,""+e);return d};b.indexOf=function(a,c,d){if(a==null)return-1;var e;if(d){d=b.sortedIndex(a,c);return a[d]===c?d:-1}if(q&&a.indexOf===q)return a.indexOf(c);d=0;for(e=a.length;d<e;d++)if(d in a&&a[d]===c)return d;return-1};b.lastIndexOf=function(a,b){if(a==null)return-1;if(F&&a.lastIndexOf===F)return a.lastIndexOf(b);for(var d=a.length;d--;)if(d in a&&a[d]===b)return d;return-1};b.range=function(a,b,d){if(arguments.length<= -1){b=a||0;a=0}for(var d=arguments[2]||1,e=Math.max(Math.ceil((b-a)/d),0),f=0,g=Array(e);f<e;){g[f++]=a;a=a+d}return g};var H=function(){};b.bind=function(a,c){var d,e;if(a.bind===t&&t)return t.apply(a,i.call(arguments,1));if(!b.isFunction(a))throw new TypeError;e=i.call(arguments,2);return d=function(){if(!(this instanceof d))return a.apply(c,e.concat(i.call(arguments)));H.prototype=a.prototype;var b=new H,g=a.apply(b,e.concat(i.call(arguments)));return Object(g)===g?g:b}};b.bindAll=function(a){var c= -i.call(arguments,1);c.length==0&&(c=b.functions(a));j(c,function(c){a[c]=b.bind(a[c],a)});return a};b.memoize=function(a,c){var d={};c||(c=b.identity);return function(){var e=c.apply(this,arguments);return b.has(d,e)?d[e]:d[e]=a.apply(this,arguments)}};b.delay=function(a,b){var d=i.call(arguments,2);return setTimeout(function(){return a.apply(null,d)},b)};b.defer=function(a){return b.delay.apply(b,[a,1].concat(i.call(arguments,1)))};b.throttle=function(a,c){var d,e,f,g,h,i,j=b.debounce(function(){h= -g=false},c);return function(){d=this;e=arguments;f||(f=setTimeout(function(){f=null;h&&a.apply(d,e);j()},c));g?h=true:i=a.apply(d,e);j();g=true;return i}};b.debounce=function(a,b,d){var e;return function(){var f=this,g=arguments;d&&!e&&a.apply(f,g);clearTimeout(e);e=setTimeout(function(){e=null;d||a.apply(f,g)},b)}};b.once=function(a){var b=false,d;return function(){if(b)return d;b=true;return d=a.apply(this,arguments)}};b.wrap=function(a,b){return function(){var d=[a].concat(i.call(arguments,0)); -return b.apply(this,d)}};b.compose=function(){var a=arguments;return function(){for(var b=arguments,d=a.length-1;d>=0;d--)b=[a[d].apply(this,b)];return b[0]}};b.after=function(a,b){return a<=0?b():function(){if(--a<1)return b.apply(this,arguments)}};b.keys=L||function(a){if(a!==Object(a))throw new TypeError("Invalid object");var c=[],d;for(d in a)b.has(a,d)&&(c[c.length]=d);return c};b.values=function(a){return b.map(a,b.identity)};b.functions=b.methods=function(a){var c=[],d;for(d in a)b.isFunction(a[d])&& -c.push(d);return c.sort()};b.extend=function(a){j(i.call(arguments,1),function(b){for(var d in b)a[d]=b[d]});return a};b.pick=function(a){var c={};j(b.flatten(i.call(arguments,1)),function(b){b in a&&(c[b]=a[b])});return c};b.defaults=function(a){j(i.call(arguments,1),function(b){for(var d in b)a[d]==null&&(a[d]=b[d])});return a};b.clone=function(a){return!b.isObject(a)?a:b.isArray(a)?a.slice():b.extend({},a)};b.tap=function(a,b){b(a);return a};b.isEqual=function(a,b){return r(a,b,[])};b.isEmpty= -function(a){if(a==null)return true;if(b.isArray(a)||b.isString(a))return a.length===0;for(var c in a)if(b.has(a,c))return false;return true};b.isElement=function(a){return!!(a&&a.nodeType==1)};b.isArray=p||function(a){return l.call(a)=="[object Array]"};b.isObject=function(a){return a===Object(a)};b.isArguments=function(a){return l.call(a)=="[object Arguments]"};b.isArguments(arguments)||(b.isArguments=function(a){return!(!a||!b.has(a,"callee"))});b.isFunction=function(a){return l.call(a)=="[object Function]"}; -b.isString=function(a){return l.call(a)=="[object String]"};b.isNumber=function(a){return l.call(a)=="[object Number]"};b.isFinite=function(a){return b.isNumber(a)&&isFinite(a)};b.isNaN=function(a){return a!==a};b.isBoolean=function(a){return a===true||a===false||l.call(a)=="[object Boolean]"};b.isDate=function(a){return l.call(a)=="[object Date]"};b.isRegExp=function(a){return l.call(a)=="[object RegExp]"};b.isNull=function(a){return a===null};b.isUndefined=function(a){return a===void 0};b.has=function(a, -b){return K.call(a,b)};b.noConflict=function(){s._=I;return this};b.identity=function(a){return a};b.times=function(a,b,d){for(var e=0;e<a;e++)b.call(d,e)};b.escape=function(a){return(""+a).replace(/&/g,"&").replace(/</g,"<").replace(/>/g,">").replace(/"/g,""").replace(/'/g,"'").replace(/\//g,"/")};b.result=function(a,c){if(a==null)return null;var d=a[c];return b.isFunction(d)?d.call(a):d};b.mixin=function(a){j(b.functions(a),function(c){M(c,b[c]=a[c])})};var N=0;b.uniqueId= -function(a){var b=N++;return a?a+b:b};b.templateSettings={evaluate:/<%([\s\S]+?)%>/g,interpolate:/<%=([\s\S]+?)%>/g,escape:/<%-([\s\S]+?)%>/g};var u=/.^/,n={"\\":"\\","'":"'",r:"\r",n:"\n",t:"\t",u2028:"\u2028",u2029:"\u2029"},v;for(v in n)n[n[v]]=v;var O=/\\|'|\r|\n|\t|\u2028|\u2029/g,P=/\\(\\|'|r|n|t|u2028|u2029)/g,w=function(a){return a.replace(P,function(a,b){return n[b]})};b.template=function(a,c,d){d=b.defaults(d||{},b.templateSettings);a="__p+='"+a.replace(O,function(a){return"\\"+n[a]}).replace(d.escape|| -u,function(a,b){return"'+\n_.escape("+w(b)+")+\n'"}).replace(d.interpolate||u,function(a,b){return"'+\n("+w(b)+")+\n'"}).replace(d.evaluate||u,function(a,b){return"';\n"+w(b)+"\n;__p+='"})+"';\n";d.variable||(a="with(obj||{}){\n"+a+"}\n");var a="var __p='';var print=function(){__p+=Array.prototype.join.call(arguments, '')};\n"+a+"return __p;\n",e=new Function(d.variable||"obj","_",a);if(c)return e(c,b);c=function(a){return e.call(this,a,b)};c.source="function("+(d.variable||"obj")+"){\n"+a+"}";return c}; -b.chain=function(a){return b(a).chain()};var m=function(a){this._wrapped=a};b.prototype=m.prototype;var x=function(a,c){return c?b(a).chain():a},M=function(a,c){m.prototype[a]=function(){var a=i.call(arguments);J.call(a,this._wrapped);return x(c.apply(b,a),this._chain)}};b.mixin(b);j("pop,push,reverse,shift,sort,splice,unshift".split(","),function(a){var b=k[a];m.prototype[a]=function(){var d=this._wrapped;b.apply(d,arguments);var e=d.length;(a=="shift"||a=="splice")&&e===0&&delete d[0];return x(d, -this._chain)}});j(["concat","join","slice"],function(a){var b=k[a];m.prototype[a]=function(){return x(b.apply(this._wrapped,arguments),this._chain)}});m.prototype.chain=function(){this._chain=true;return this};m.prototype.value=function(){return this._wrapped}}).call(this); diff --git a/resources/static/lib/underscore.js b/resources/static/lib/underscore.js new file mode 100644 index 000000000..f6f7e2f23 --- /dev/null +++ b/resources/static/lib/underscore.js @@ -0,0 +1,1059 @@ +// Underscore.js 1.3.3 +// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc. +// Underscore is freely distributable under the MIT license. +// Portions of Underscore are inspired or borrowed from Prototype, +// Oliver Steele's Functional, and John Resig's Micro-Templating. +// For all details and documentation: +// http://documentcloud.github.com/underscore + +(function() { + + // Baseline setup + // -------------- + + // Establish the root object, `window` in the browser, or `global` on the server. + var root = this; + + // Save the previous value of the `_` variable. + var previousUnderscore = root._; + + // Establish the object that gets returned to break out of a loop iteration. + var breaker = {}; + + // Save bytes in the minified (but not gzipped) version: + var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype; + + // Create quick reference variables for speed access to core prototypes. + var slice = ArrayProto.slice, + unshift = ArrayProto.unshift, + toString = ObjProto.toString, + hasOwnProperty = ObjProto.hasOwnProperty; + + // All **ECMAScript 5** native function implementations that we hope to use + // are declared here. + var + nativeForEach = ArrayProto.forEach, + nativeMap = ArrayProto.map, + nativeReduce = ArrayProto.reduce, + nativeReduceRight = ArrayProto.reduceRight, + nativeFilter = ArrayProto.filter, + nativeEvery = ArrayProto.every, + nativeSome = ArrayProto.some, + nativeIndexOf = ArrayProto.indexOf, + nativeLastIndexOf = ArrayProto.lastIndexOf, + nativeIsArray = Array.isArray, + nativeKeys = Object.keys, + nativeBind = FuncProto.bind; + + // Create a safe reference to the Underscore object for use below. + var _ = function(obj) { return new wrapper(obj); }; + + // Export the Underscore object for **Node.js**, with + // backwards-compatibility for the old `require()` API. If we're in + // the browser, add `_` as a global object via a string identifier, + // for Closure Compiler "advanced" mode. + if (typeof exports !== 'undefined') { + if (typeof module !== 'undefined' && module.exports) { + exports = module.exports = _; + } + exports._ = _; + } else { + root['_'] = _; + } + + // Current version. + _.VERSION = '1.3.3'; + + // Collection Functions + // -------------------- + + // The cornerstone, an `each` implementation, aka `forEach`. + // Handles objects with the built-in `forEach`, arrays, and raw objects. + // Delegates to **ECMAScript 5**'s native `forEach` if available. + var each = _.each = _.forEach = function(obj, iterator, context) { + if (obj == null) return; + if (nativeForEach && obj.forEach === nativeForEach) { + obj.forEach(iterator, context); + } else if (obj.length === +obj.length) { + for (var i = 0, l = obj.length; i < l; i++) { + if (i in obj && iterator.call(context, obj[i], i, obj) === breaker) return; + } + } else { + for (var key in obj) { + if (_.has(obj, key)) { + if (iterator.call(context, obj[key], key, obj) === breaker) return; + } + } + } + }; + + // Return the results of applying the iterator to each element. + // Delegates to **ECMAScript 5**'s native `map` if available. + _.map = _.collect = function(obj, iterator, context) { + var results = []; + if (obj == null) return results; + if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context); + each(obj, function(value, index, list) { + results[results.length] = iterator.call(context, value, index, list); + }); + if (obj.length === +obj.length) results.length = obj.length; + return results; + }; + + // **Reduce** builds up a single result from a list of values, aka `inject`, + // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available. + _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) { + var initial = arguments.length > 2; + if (obj == null) obj = []; + if (nativeReduce && obj.reduce === nativeReduce) { + if (context) iterator = _.bind(iterator, context); + return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator); + } + each(obj, function(value, index, list) { + if (!initial) { + memo = value; + initial = true; + } else { + memo = iterator.call(context, memo, value, index, list); + } + }); + if (!initial) throw new TypeError('Reduce of empty array with no initial value'); + return memo; + }; + + // The right-associative version of reduce, also known as `foldr`. + // Delegates to **ECMAScript 5**'s native `reduceRight` if available. + _.reduceRight = _.foldr = function(obj, iterator, memo, context) { + var initial = arguments.length > 2; + if (obj == null) obj = []; + if (nativeReduceRight && obj.reduceRight === nativeReduceRight) { + if (context) iterator = _.bind(iterator, context); + return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator); + } + var reversed = _.toArray(obj).reverse(); + if (context && !initial) iterator = _.bind(iterator, context); + return initial ? _.reduce(reversed, iterator, memo, context) : _.reduce(reversed, iterator); + }; + + // Return the first value which passes a truth test. Aliased as `detect`. + _.find = _.detect = function(obj, iterator, context) { + var result; + any(obj, function(value, index, list) { + if (iterator.call(context, value, index, list)) { + result = value; + return true; + } + }); + return result; + }; + + // Return all the elements that pass a truth test. + // Delegates to **ECMAScript 5**'s native `filter` if available. + // Aliased as `select`. + _.filter = _.select = function(obj, iterator, context) { + var results = []; + if (obj == null) return results; + if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context); + each(obj, function(value, index, list) { + if (iterator.call(context, value, index, list)) results[results.length] = value; + }); + return results; + }; + + // Return all the elements for which a truth test fails. + _.reject = function(obj, iterator, context) { + var results = []; + if (obj == null) return results; + each(obj, function(value, index, list) { + if (!iterator.call(context, value, index, list)) results[results.length] = value; + }); + return results; + }; + + // Determine whether all of the elements match a truth test. + // Delegates to **ECMAScript 5**'s native `every` if available. + // Aliased as `all`. + _.every = _.all = function(obj, iterator, context) { + var result = true; + if (obj == null) return result; + if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context); + each(obj, function(value, index, list) { + if (!(result = result && iterator.call(context, value, index, list))) return breaker; + }); + return !!result; + }; + + // Determine if at least one element in the object matches a truth test. + // Delegates to **ECMAScript 5**'s native `some` if available. + // Aliased as `any`. + var any = _.some = _.any = function(obj, iterator, context) { + iterator || (iterator = _.identity); + var result = false; + if (obj == null) return result; + if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context); + each(obj, function(value, index, list) { + if (result || (result = iterator.call(context, value, index, list))) return breaker; + }); + return !!result; + }; + + // Determine if a given value is included in the array or object using `===`. + // Aliased as `contains`. + _.include = _.contains = function(obj, target) { + var found = false; + if (obj == null) return found; + if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1; + found = any(obj, function(value) { + return value === target; + }); + return found; + }; + + // Invoke a method (with arguments) on every item in a collection. + _.invoke = function(obj, method) { + var args = slice.call(arguments, 2); + return _.map(obj, function(value) { + return (_.isFunction(method) ? method || value : value[method]).apply(value, args); + }); + }; + + // Convenience version of a common use case of `map`: fetching a property. + _.pluck = function(obj, key) { + return _.map(obj, function(value){ return value[key]; }); + }; + + // Return the maximum element or (element-based computation). + _.max = function(obj, iterator, context) { + if (!iterator && _.isArray(obj) && obj[0] === +obj[0]) return Math.max.apply(Math, obj); + if (!iterator && _.isEmpty(obj)) return -Infinity; + var result = {computed : -Infinity}; + each(obj, function(value, index, list) { + var computed = iterator ? iterator.call(context, value, index, list) : value; + computed >= result.computed && (result = {value : value, computed : computed}); + }); + return result.value; + }; + + // Return the minimum element (or element-based computation). + _.min = function(obj, iterator, context) { + if (!iterator && _.isArray(obj) && obj[0] === +obj[0]) return Math.min.apply(Math, obj); + if (!iterator && _.isEmpty(obj)) return Infinity; + var result = {computed : Infinity}; + each(obj, function(value, index, list) { + var computed = iterator ? iterator.call(context, value, index, list) : value; + computed < result.computed && (result = {value : value, computed : computed}); + }); + return result.value; + }; + + // Shuffle an array. + _.shuffle = function(obj) { + var shuffled = [], rand; + each(obj, function(value, index, list) { + rand = Math.floor(Math.random() * (index + 1)); + shuffled[index] = shuffled[rand]; + shuffled[rand] = value; + }); + return shuffled; + }; + + // Sort the object's values by a criterion produced by an iterator. + _.sortBy = function(obj, val, context) { + var iterator = _.isFunction(val) ? val : function(obj) { return obj[val]; }; + return _.pluck(_.map(obj, function(value, index, list) { + return { + value : value, + criteria : iterator.call(context, value, index, list) + }; + }).sort(function(left, right) { + var a = left.criteria, b = right.criteria; + if (a === void 0) return 1; + if (b === void 0) return -1; + return a < b ? -1 : a > b ? 1 : 0; + }), 'value'); + }; + + // Groups the object's values by a criterion. Pass either a string attribute + // to group by, or a function that returns the criterion. + _.groupBy = function(obj, val) { + var result = {}; + var iterator = _.isFunction(val) ? val : function(obj) { return obj[val]; }; + each(obj, function(value, index) { + var key = iterator(value, index); + (result[key] || (result[key] = [])).push(value); + }); + return result; + }; + + // Use a comparator function to figure out at what index an object should + // be inserted so as to maintain order. Uses binary search. + _.sortedIndex = function(array, obj, iterator) { + iterator || (iterator = _.identity); + var low = 0, high = array.length; + while (low < high) { + var mid = (low + high) >> 1; + iterator(array[mid]) < iterator(obj) ? low = mid + 1 : high = mid; + } + return low; + }; + + // Safely convert anything iterable into a real, live array. + _.toArray = function(obj) { + if (!obj) return []; + if (_.isArray(obj)) return slice.call(obj); + if (_.isArguments(obj)) return slice.call(obj); + if (obj.toArray && _.isFunction(obj.toArray)) return obj.toArray(); + return _.values(obj); + }; + + // Return the number of elements in an object. + _.size = function(obj) { + return _.isArray(obj) ? obj.length : _.keys(obj).length; + }; + + // Array Functions + // --------------- + + // Get the first element of an array. Passing **n** will return the first N + // values in the array. Aliased as `head` and `take`. The **guard** check + // allows it to work with `_.map`. + _.first = _.head = _.take = function(array, n, guard) { + return (n != null) && !guard ? slice.call(array, 0, n) : array[0]; + }; + + // Returns everything but the last entry of the array. Especcialy useful on + // the arguments object. Passing **n** will return all the values in + // the array, excluding the last N. The **guard** check allows it to work with + // `_.map`. + _.initial = function(array, n, guard) { + return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n)); + }; + + // Get the last element of an array. Passing **n** will return the last N + // values in the array. The **guard** check allows it to work with `_.map`. + _.last = function(array, n, guard) { + if ((n != null) && !guard) { + return slice.call(array, Math.max(array.length - n, 0)); + } else { + return array[array.length - 1]; + } + }; + + // Returns everything but the first entry of the array. Aliased as `tail`. + // Especially useful on the arguments object. Passing an **index** will return + // the rest of the values in the array from that index onward. The **guard** + // check allows it to work with `_.map`. + _.rest = _.tail = function(array, index, guard) { + return slice.call(array, (index == null) || guard ? 1 : index); + }; + + // Trim out all falsy values from an array. + _.compact = function(array) { + return _.filter(array, function(value){ return !!value; }); + }; + + // Return a completely flattened version of an array. + _.flatten = function(array, shallow) { + return _.reduce(array, function(memo, value) { + if (_.isArray(value)) return memo.concat(shallow ? value : _.flatten(value)); + memo[memo.length] = value; + return memo; + }, []); + }; + + // Return a version of the array that does not contain the specified value(s). + _.without = function(array) { + return _.difference(array, slice.call(arguments, 1)); + }; + + // Produce a duplicate-free version of the array. If the array has already + // been sorted, you have the option of using a faster algorithm. + // Aliased as `unique`. + _.uniq = _.unique = function(array, isSorted, iterator) { + var initial = iterator ? _.map(array, iterator) : array; + var results = []; + // The `isSorted` flag is irrelevant if the array only contains two elements. + if (array.length < 3) isSorted = true; + _.reduce(initial, function (memo, value, index) { + if (isSorted ? _.last(memo) !== value || !memo.length : !_.include(memo, value)) { + memo.push(value); + results.push(array[index]); + } + return memo; + }, []); + return results; + }; + + // Produce an array that contains the union: each distinct element from all of + // the passed-in arrays. + _.union = function() { + return _.uniq(_.flatten(arguments, true)); + }; + + // Produce an array that contains every item shared between all the + // passed-in arrays. (Aliased as "intersect" for back-compat.) + _.intersection = _.intersect = function(array) { + var rest = slice.call(arguments, 1); + return _.filter(_.uniq(array), function(item) { + return _.every(rest, function(other) { + return _.indexOf(other, item) >= 0; + }); + }); + }; + + // Take the difference between one array and a number of other arrays. + // Only the elements present in just the first array will remain. + _.difference = function(array) { + var rest = _.flatten(slice.call(arguments, 1), true); + return _.filter(array, function(value){ return !_.include(rest, value); }); + }; + + // Zip together multiple lists into a single array -- elements that share + // an index go together. + _.zip = function() { + var args = slice.call(arguments); + var length = _.max(_.pluck(args, 'length')); + var results = new Array(length); + for (var i = 0; i < length; i++) results[i] = _.pluck(args, "" + i); + return results; + }; + + // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**), + // we need this function. Return the position of the first occurrence of an + // item in an array, or -1 if the item is not included in the array. + // Delegates to **ECMAScript 5**'s native `indexOf` if available. + // If the array is large and already in sort order, pass `true` + // for **isSorted** to use binary search. + _.indexOf = function(array, item, isSorted) { + if (array == null) return -1; + var i, l; + if (isSorted) { + i = _.sortedIndex(array, item); + return array[i] === item ? i : -1; + } + if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item); + for (i = 0, l = array.length; i < l; i++) if (i in array && array[i] === item) return i; + return -1; + }; + + // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available. + _.lastIndexOf = function(array, item) { + if (array == null) return -1; + if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) return array.lastIndexOf(item); + var i = array.length; + while (i--) if (i in array && array[i] === item) return i; + return -1; + }; + + // Generate an integer Array containing an arithmetic progression. A port of + // the native Python `range()` function. See + // [the Python documentation](http://docs.python.org/library/functions.html#range). + _.range = function(start, stop, step) { + if (arguments.length <= 1) { + stop = start || 0; + start = 0; + } + step = arguments[2] || 1; + + var len = Math.max(Math.ceil((stop - start) / step), 0); + var idx = 0; + var range = new Array(len); + + while(idx < len) { + range[idx++] = start; + start += step; + } + + return range; + }; + + // Function (ahem) Functions + // ------------------ + + // Reusable constructor function for prototype setting. + var ctor = function(){}; + + // Create a function bound to a given object (assigning `this`, and arguments, + // optionally). Binding with arguments is also known as `curry`. + // Delegates to **ECMAScript 5**'s native `Function.bind` if available. + // We check for `func.bind` first, to fail fast when `func` is undefined. + _.bind = function bind(func, context) { + var bound, args; + if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1)); + if (!_.isFunction(func)) throw new TypeError; + args = slice.call(arguments, 2); + return bound = function() { + if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments))); + ctor.prototype = func.prototype; + var self = new ctor; + var result = func.apply(self, args.concat(slice.call(arguments))); + if (Object(result) === result) return result; + return self; + }; + }; + + // Bind all of an object's methods to that object. Useful for ensuring that + // all callbacks defined on an object belong to it. + _.bindAll = function(obj) { + var funcs = slice.call(arguments, 1); + if (funcs.length == 0) funcs = _.functions(obj); + each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); }); + return obj; + }; + + // Memoize an expensive function by storing its results. + _.memoize = function(func, hasher) { + var memo = {}; + hasher || (hasher = _.identity); + return function() { + var key = hasher.apply(this, arguments); + return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments)); + }; + }; + + // Delays a function for the given number of milliseconds, and then calls + // it with the arguments supplied. + _.delay = function(func, wait) { + var args = slice.call(arguments, 2); + return setTimeout(function(){ return func.apply(null, args); }, wait); + }; + + // Defers a function, scheduling it to run after the current call stack has + // cleared. + _.defer = function(func) { + return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1))); + }; + + // Returns a function, that, when invoked, will only be triggered at most once + // during a given window of time. + _.throttle = function(func, wait) { + var context, args, timeout, throttling, more, result; + var whenDone = _.debounce(function(){ more = throttling = false; }, wait); + return function() { + context = this; args = arguments; + var later = function() { + timeout = null; + if (more) func.apply(context, args); + whenDone(); + }; + if (!timeout) timeout = setTimeout(later, wait); + if (throttling) { + more = true; + } else { + result = func.apply(context, args); + } + whenDone(); + throttling = true; + return result; + }; + }; + + // Returns a function, that, as long as it continues to be invoked, will not + // be triggered. The function will be called after it stops being called for + // N milliseconds. If `immediate` is passed, trigger the function on the + // leading edge, instead of the trailing. + _.debounce = function(func, wait, immediate) { + var timeout; + return function() { + var context = this, args = arguments; + var later = function() { + timeout = null; + if (!immediate) func.apply(context, args); + }; + if (immediate && !timeout) func.apply(context, args); + clearTimeout(timeout); + timeout = setTimeout(later, wait); + }; + }; + + // Returns a function that will be executed at most one time, no matter how + // often you call it. Useful for lazy initialization. + _.once = function(func) { + var ran = false, memo; + return function() { + if (ran) return memo; + ran = true; + return memo = func.apply(this, arguments); + }; + }; + + // Returns the first function passed as an argument to the second, + // allowing you to adjust arguments, run code before and after, and + // conditionally execute the original function. + _.wrap = function(func, wrapper) { + return function() { + var args = [func].concat(slice.call(arguments, 0)); + return wrapper.apply(this, args); + }; + }; + + // Returns a function that is the composition of a list of functions, each + // consuming the return value of the function that follows. + _.compose = function() { + var funcs = arguments; + return function() { + var args = arguments; + for (var i = funcs.length - 1; i >= 0; i--) { + args = [funcs[i].apply(this, args)]; + } + return args[0]; + }; + }; + + // Returns a function that will only be executed after being called N times. + _.after = function(times, func) { + if (times <= 0) return func(); + return function() { + if (--times < 1) { return func.apply(this, arguments); } + }; + }; + + // Object Functions + // ---------------- + + // Retrieve the names of an object's properties. + // Delegates to **ECMAScript 5**'s native `Object.keys` + _.keys = nativeKeys || function(obj) { + if (obj !== Object(obj)) throw new TypeError('Invalid object'); + var keys = []; + for (var key in obj) if (_.has(obj, key)) keys[keys.length] = key; + return keys; + }; + + // Retrieve the values of an object's properties. + _.values = function(obj) { + return _.map(obj, _.identity); + }; + + // Return a sorted list of the function names available on the object. + // Aliased as `methods` + _.functions = _.methods = function(obj) { + var names = []; + for (var key in obj) { + if (_.isFunction(obj[key])) names.push(key); + } + return names.sort(); + }; + + // Extend a given object with all the properties in passed-in object(s). + _.extend = function(obj) { + each(slice.call(arguments, 1), function(source) { + for (var prop in source) { + obj[prop] = source[prop]; + } + }); + return obj; + }; + + // Return a copy of the object only containing the whitelisted properties. + _.pick = function(obj) { + var result = {}; + each(_.flatten(slice.call(arguments, 1)), function(key) { + if (key in obj) result[key] = obj[key]; + }); + return result; + }; + + // Fill in a given object with default properties. + _.defaults = function(obj) { + each(slice.call(arguments, 1), function(source) { + for (var prop in source) { + if (obj[prop] == null) obj[prop] = source[prop]; + } + }); + return obj; + }; + + // Create a (shallow-cloned) duplicate of an object. + _.clone = function(obj) { + if (!_.isObject(obj)) return obj; + return _.isArray(obj) ? obj.slice() : _.extend({}, obj); + }; + + // Invokes interceptor with the obj, and then returns obj. + // The primary purpose of this method is to "tap into" a method chain, in + // order to perform operations on intermediate results within the chain. + _.tap = function(obj, interceptor) { + interceptor(obj); + return obj; + }; + + // Internal recursive comparison function. + function eq(a, b, stack) { + // Identical objects are equal. `0 === -0`, but they aren't identical. + // See the Harmony `egal` proposal: http://wiki.ecmascript.org/doku.php?id=harmony:egal. + if (a === b) return a !== 0 || 1 / a == 1 / b; + // A strict comparison is necessary because `null == undefined`. + if (a == null || b == null) return a === b; + // Unwrap any wrapped objects. + if (a._chain) a = a._wrapped; + if (b._chain) b = b._wrapped; + // Invoke a custom `isEqual` method if one is provided. + if (a.isEqual && _.isFunction(a.isEqual)) return a.isEqual(b); + if (b.isEqual && _.isFunction(b.isEqual)) return b.isEqual(a); + // Compare `[[Class]]` names. + var className = toString.call(a); + if (className != toString.call(b)) return false; + switch (className) { + // Strings, numbers, dates, and booleans are compared by value. + case '[object String]': + // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is + // equivalent to `new String("5")`. + return a == String(b); + case '[object Number]': + // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for + // other numeric values. + return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b); + case '[object Date]': + case '[object Boolean]': + // Coerce dates and booleans to numeric primitive values. Dates are compared by their + // millisecond representations. Note that invalid dates with millisecond representations + // of `NaN` are not equivalent. + return +a == +b; + // RegExps are compared by their source patterns and flags. + case '[object RegExp]': + return a.source == b.source && + a.global == b.global && + a.multiline == b.multiline && + a.ignoreCase == b.ignoreCase; + } + if (typeof a != 'object' || typeof b != 'object') return false; + // Assume equality for cyclic structures. The algorithm for detecting cyclic + // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`. + var length = stack.length; + while (length--) { + // Linear search. Performance is inversely proportional to the number of + // unique nested structures. + if (stack[length] == a) return true; + } + // Add the first object to the stack of traversed objects. + stack.push(a); + var size = 0, result = true; + // Recursively compare objects and arrays. + if (className == '[object Array]') { + // Compare array lengths to determine if a deep comparison is necessary. + size = a.length; + result = size == b.length; + if (result) { + // Deep compare the contents, ignoring non-numeric properties. + while (size--) { + // Ensure commutative equality for sparse arrays. + if (!(result = size in a == size in b && eq(a[size], b[size], stack))) break; + } + } + } else { + // Objects with different constructors are not equivalent. + if ('constructor' in a != 'constructor' in b || a.constructor != b.constructor) return false; + // Deep compare objects. + for (var key in a) { + if (_.has(a, key)) { + // Count the expected number of properties. + size++; + // Deep compare each member. + if (!(result = _.has(b, key) && eq(a[key], b[key], stack))) break; + } + } + // Ensure that both objects contain the same number of properties. + if (result) { + for (key in b) { + if (_.has(b, key) && !(size--)) break; + } + result = !size; + } + } + // Remove the first object from the stack of traversed objects. + stack.pop(); + return result; + } + + // Perform a deep comparison to check if two objects are equal. + _.isEqual = function(a, b) { + return eq(a, b, []); + }; + + // Is a given array, string, or object empty? + // An "empty" object has no enumerable own-properties. + _.isEmpty = function(obj) { + if (obj == null) return true; + if (_.isArray(obj) || _.isString(obj)) return obj.length === 0; + for (var key in obj) if (_.has(obj, key)) return false; + return true; + }; + + // Is a given value a DOM element? + _.isElement = function(obj) { + return !!(obj && obj.nodeType == 1); + }; + + // Is a given value an array? + // Delegates to ECMA5's native Array.isArray + _.isArray = nativeIsArray || function(obj) { + return toString.call(obj) == '[object Array]'; + }; + + // Is a given variable an object? + _.isObject = function(obj) { + return obj === Object(obj); + }; + + // Is a given variable an arguments object? + _.isArguments = function(obj) { + return toString.call(obj) == '[object Arguments]'; + }; + if (!_.isArguments(arguments)) { + _.isArguments = function(obj) { + return !!(obj && _.has(obj, 'callee')); + }; + } + + // Is a given value a function? + _.isFunction = function(obj) { + return toString.call(obj) == '[object Function]'; + }; + + // Is a given value a string? + _.isString = function(obj) { + return toString.call(obj) == '[object String]'; + }; + + // Is a given value a number? + _.isNumber = function(obj) { + return toString.call(obj) == '[object Number]'; + }; + + // Is a given object a finite number? + _.isFinite = function(obj) { + return _.isNumber(obj) && isFinite(obj); + }; + + // Is the given value `NaN`? + _.isNaN = function(obj) { + // `NaN` is the only value for which `===` is not reflexive. + return obj !== obj; + }; + + // Is a given value a boolean? + _.isBoolean = function(obj) { + return obj === true || obj === false || toString.call(obj) == '[object Boolean]'; + }; + + // Is a given value a date? + _.isDate = function(obj) { + return toString.call(obj) == '[object Date]'; + }; + + // Is the given value a regular expression? + _.isRegExp = function(obj) { + return toString.call(obj) == '[object RegExp]'; + }; + + // Is a given value equal to null? + _.isNull = function(obj) { + return obj === null; + }; + + // Is a given variable undefined? + _.isUndefined = function(obj) { + return obj === void 0; + }; + + // Has own property? + _.has = function(obj, key) { + return hasOwnProperty.call(obj, key); + }; + + // Utility Functions + // ----------------- + + // Run Underscore.js in *noConflict* mode, returning the `_` variable to its + // previous owner. Returns a reference to the Underscore object. + _.noConflict = function() { + root._ = previousUnderscore; + return this; + }; + + // Keep the identity function around for default iterators. + _.identity = function(value) { + return value; + }; + + // Run a function **n** times. + _.times = function (n, iterator, context) { + for (var i = 0; i < n; i++) iterator.call(context, i); + }; + + // Escape a string for HTML interpolation. + _.escape = function(string) { + return (''+string).replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>').replace(/"/g, '"').replace(/'/g, ''').replace(/\//g,'/'); + }; + + // If the value of the named property is a function then invoke it; + // otherwise, return it. + _.result = function(object, property) { + if (object == null) return null; + var value = object[property]; + return _.isFunction(value) ? value.call(object) : value; + }; + + // Add your own custom functions to the Underscore object, ensuring that + // they're correctly added to the OOP wrapper as well. + _.mixin = function(obj) { + each(_.functions(obj), function(name){ + addToWrapper(name, _[name] = obj[name]); + }); + }; + + // Generate a unique integer id (unique within the entire client session). + // Useful for temporary DOM ids. + var idCounter = 0; + _.uniqueId = function(prefix) { + var id = idCounter++; + return prefix ? prefix + id : id; + }; + + // By default, Underscore uses ERB-style template delimiters, change the + // following template settings to use alternative delimiters. + _.templateSettings = { + evaluate : /<%([\s\S]+?)%>/g, + interpolate : /<%=([\s\S]+?)%>/g, + escape : /<%-([\s\S]+?)%>/g + }; + + // When customizing `templateSettings`, if you don't want to define an + // interpolation, evaluation or escaping regex, we need one that is + // guaranteed not to match. + var noMatch = /.^/; + + // Certain characters need to be escaped so that they can be put into a + // string literal. + var escapes = { + '\\': '\\', + "'": "'", + 'r': '\r', + 'n': '\n', + 't': '\t', + 'u2028': '\u2028', + 'u2029': '\u2029' + }; + + for (var p in escapes) escapes[escapes[p]] = p; + var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g; + var unescaper = /\\(\\|'|r|n|t|u2028|u2029)/g; + + // Within an interpolation, evaluation, or escaping, remove HTML escaping + // that had been previously added. + var unescape = function(code) { + return code.replace(unescaper, function(match, escape) { + return escapes[escape]; + }); + }; + + // JavaScript micro-templating, similar to John Resig's implementation. + // Underscore templating handles arbitrary delimiters, preserves whitespace, + // and correctly escapes quotes within interpolated code. + _.template = function(text, data, settings) { + settings = _.defaults(settings || {}, _.templateSettings); + + // Compile the template source, taking care to escape characters that + // cannot be included in a string literal and then unescape them in code + // blocks. + var source = "__p+='" + text + .replace(escaper, function(match) { + return '\\' + escapes[match]; + }) + .replace(settings.escape || noMatch, function(match, code) { + return "'+\n_.escape(" + unescape(code) + ")+\n'"; + }) + .replace(settings.interpolate || noMatch, function(match, code) { + return "'+\n(" + unescape(code) + ")+\n'"; + }) + .replace(settings.evaluate || noMatch, function(match, code) { + return "';\n" + unescape(code) + "\n;__p+='"; + }) + "';\n"; + + // If a variable is not specified, place data values in local scope. + if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n'; + + source = "var __p='';" + + "var print=function(){__p+=Array.prototype.join.call(arguments, '')};\n" + + source + "return __p;\n"; + + var render = new Function(settings.variable || 'obj', '_', source); + if (data) return render(data, _); + var template = function(data) { + return render.call(this, data, _); + }; + + // Provide the compiled function source as a convenience for build time + // precompilation. + template.source = 'function(' + (settings.variable || 'obj') + '){\n' + + source + '}'; + + return template; + }; + + // Add a "chain" function, which will delegate to the wrapper. + _.chain = function(obj) { + return _(obj).chain(); + }; + + // The OOP Wrapper + // --------------- + + // If Underscore is called as a function, it returns a wrapped object that + // can be used OO-style. This wrapper holds altered versions of all the + // underscore functions. Wrapped objects may be chained. + var wrapper = function(obj) { this._wrapped = obj; }; + + // Expose `wrapper.prototype` as `_.prototype` + _.prototype = wrapper.prototype; + + // Helper function to continue chaining intermediate results. + var result = function(obj, chain) { + return chain ? _(obj).chain() : obj; + }; + + // A method to easily add functions to the OOP wrapper. + var addToWrapper = function(name, func) { + wrapper.prototype[name] = function() { + var args = slice.call(arguments); + unshift.call(args, this._wrapped); + return result(func.apply(_, args), this._chain); + }; + }; + + // Add all of the Underscore functions to the wrapper object. + _.mixin(_); + + // Add all mutator Array functions to the wrapper. + each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) { + var method = ArrayProto[name]; + wrapper.prototype[name] = function() { + var wrapped = this._wrapped; + method.apply(wrapped, arguments); + var length = wrapped.length; + if ((name == 'shift' || name == 'splice') && length === 0) delete wrapped[0]; + return result(wrapped, this._chain); + }; + }); + + // Add all accessor Array functions to the wrapper. + each(['concat', 'join', 'slice'], function(name) { + var method = ArrayProto[name]; + wrapper.prototype[name] = function() { + return result(method.apply(this._wrapped, arguments), this._chain); + }; + }); + + // Start chaining a wrapped Underscore object. + wrapper.prototype.chain = function() { + this._chain = true; + return this; + }; + + // Extracts the result from a wrapped and chained object. + wrapper.prototype.value = function() { + return this._wrapped; + }; + +}).call(this); diff --git a/resources/views/test.ejs b/resources/views/test.ejs index 630b4bd06..aed2e8431 100644 --- a/resources/views/test.ejs +++ b/resources/views/test.ejs @@ -64,7 +64,7 @@ <script src="qunit/qunit.js"></script> <script src="/include.js"></script> <script src="/lib/jquery-1.7.1.min.js"></script> - <script src="/lib/underscore-min.js"></script> + <script src="/lib/underscore.js"></script> <script src="/lib/ejs.js"></script> <script src="/i18n/en_US/client.json"></script> <script src="/shared/javascript-extensions.js"></script> -- GitLab