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https://github.com/whoisclebs/lodash.git
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Underscore 0.5.2
This commit is contained in:
Jeremy Ashkenas
20
index.html
20
index.html
@@ -113,11 +113,11 @@
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<p>
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<table>
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<tr>
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<td><a href="underscore.js">Development Version (0.5.1)</a></td>
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<td><a href="underscore.js">Development Version (0.5.2)</a></td>
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<td><i>21kb, Uncompressed with Comments</i></td>
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</tr>
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<tr>
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<td><a href="underscore-min.js">Production Version (0.5.1)</a></td>
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<td><a href="underscore-min.js">Production Version (0.5.2)</a></td>
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<td><i>3kb, Packed and Gzipped</i></td>
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</tr>
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</table>
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@@ -1067,6 +1067,22 @@ _([1, 2, 3]).value();
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<h2>Change Log</h2>
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<p>
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<b class="header">0.5.2</b><br />
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New implementations of <tt>isArray</tt>, <tt>isDate</tt>, <tt>isFunction</tt>,
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<tt>isNumber</tt>, <tt>isRegExp</tt>, and <tt>isString</tt>, thanks to
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a suggestion from
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<a href="http://www.broofa.com/">Robert Kieffer</a>.
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Instead of doing <tt>Object#toString</tt>
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comparisons, they now check for expected properties, which is less safe,
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but more than an order of magnitude faster. Most other Underscore
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functions saw minor speed improvements as a result.
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<a href="http://dolzhenko.org/">Evgeniy Dolzhenko</a>
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contributed <tt>_.tap</tt>,
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<a href="http://ruby-doc.org/core-1.9/classes/Object.html#M000191">similar to Ruby 1.9's</a>,
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which is handy for injecting side effects (like logging) into chained calls.
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</p>
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<p>
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<b class="header">0.5.1</b><br />
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Added an <tt>_.isArguments</tt> function. Lots of little safety checks
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21
underscore-min.js
vendored
21
underscore-min.js
vendored
@@ -1,16 +1,17 @@
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(function(){var j=this,p=j._,i=function(a){this._wrapped=a},o=typeof StopIteration!=="undefined"?StopIteration:"__break__",b=j._=function(a){return new i(a)};if(typeof exports!=="undefined")exports._=b;var l=Array.prototype.slice,q=Array.prototype.unshift,r=Object.prototype.toString,s=Object.prototype.hasOwnProperty,t=Object.prototype.propertyIsEnumerable;b.VERSION="0.5.1";b.each=function(a,c,d){try{if(a.forEach)a.forEach(c,d);else if(b.isArray(a)||b.isArguments(a))for(var e=0,f=a.length;e<f;e++)c.call(d,
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a[e],e,a);else{var g=b.keys(a);f=g.length;for(e=0;e<f;e++)c.call(d,a[g[e]],g[e],a)}}catch(h){if(h!=o)throw h;}return a};b.map=function(a,c,d){if(a&&b.isFunction(a.map))return a.map(c,d);var e=[];b.each(a,function(f,g,h){e.push(c.call(d,f,g,h))});return e};b.reduce=function(a,c,d,e){if(a&&b.isFunction(a.reduce))return a.reduce(b.bind(d,e),c);b.each(a,function(f,g,h){c=d.call(e,c,f,g,h)});return c};b.reduceRight=function(a,c,d,e){if(a&&b.isFunction(a.reduceRight))return a.reduceRight(b.bind(d,e),c);
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(function(){var j=this,n=j._,i=function(a){this._wrapped=a},m=typeof StopIteration!=="undefined"?StopIteration:"__break__",b=j._=function(a){return new i(a)};if(typeof exports!=="undefined")exports._=b;var k=Array.prototype.slice,o=Array.prototype.unshift,p=Object.prototype.toString,q=Object.prototype.hasOwnProperty,r=Object.prototype.propertyIsEnumerable;b.VERSION="0.5.2";b.each=function(a,c,d){try{if(a.forEach)a.forEach(c,d);else if(b.isArray(a)||b.isArguments(a))for(var e=0,f=a.length;e<f;e++)c.call(d,
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a[e],e,a);else{var g=b.keys(a);f=g.length;for(e=0;e<f;e++)c.call(d,a[g[e]],g[e],a)}}catch(h){if(h!=m)throw h;}return a};b.map=function(a,c,d){if(a&&b.isFunction(a.map))return a.map(c,d);var e=[];b.each(a,function(f,g,h){e.push(c.call(d,f,g,h))});return e};b.reduce=function(a,c,d,e){if(a&&b.isFunction(a.reduce))return a.reduce(b.bind(d,e),c);b.each(a,function(f,g,h){c=d.call(e,c,f,g,h)});return c};b.reduceRight=function(a,c,d,e){if(a&&b.isFunction(a.reduceRight))return a.reduceRight(b.bind(d,e),c);
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d);var e=true;b.each(a,function(f,g,h){(e=e&&c.call(d,f,g,h))||b.breakLoop()});return e};b.any=function(a,c,d){c=c||b.identity;if(a&&b.isFunction(a.some))return a.some(c,d);var e=false;b.each(a,function(f,g,h){if(e=c.call(d,f,g,h))b.breakLoop()});return e};b.include=function(a,c){if(b.isArray(a))return b.indexOf(a,c)!=-1;var d=false;b.each(a,function(e){if(d=e===c)b.breakLoop()});return d};b.invoke=function(a,c){var d=b.rest(arguments,2);return b.map(a,function(e){return(c?e[c]:e).apply(e,d)})};b.pluck=
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function(a,c){return b.map(a,function(d){return d[c]})};b.max=function(a,c,d){if(!c&&b.isArray(a))return Math.max.apply(Math,a);var e={computed:-Infinity};b.each(a,function(f,g,h){g=c?c.call(d,f,g,h):f;g>=e.computed&&(e={value:f,computed:g})});return e.value};b.min=function(a,c,d){if(!c&&b.isArray(a))return Math.min.apply(Math,a);var e={computed:Infinity};b.each(a,function(f,g,h){g=c?c.call(d,f,g,h):f;g<e.computed&&(e={value:f,computed:g})});return e.value};b.sortBy=function(a,c,d){return b.pluck(b.map(a,
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function(e,f,g){return{value:e,criteria:c.call(d,e,f,g)}}).sort(function(e,f){e=e.criteria;f=f.criteria;return e<f?-1:e>f?1:0}),"value")};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){if(!a)return[];if(a.toArray)return a.toArray();if(b.isArray(a))return a;if(b.isArguments(a))return l.call(a);return b.map(a,function(c){return c})};b.size=function(a){return b.toArray(a).length};b.first=function(a,c,
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d){return c&&!d?l.call(a,0,c):a[0]};b.rest=function(a,c,d){return l.call(a,b.isUndefined(c)||d?1:c)};b.last=function(a){return a[a.length-1]};b.compact=function(a){return b.select(a,function(c){return!!c})};b.flatten=function(a){return b.reduce(a,[],function(c,d){if(b.isArray(d))return c.concat(b.flatten(d));c.push(d);return c})};b.without=function(a){var c=b.rest(arguments);return b.select(a,function(d){return!b.include(c,d)})};b.uniq=function(a,c){return b.reduce(a,[],function(d,e,f){if(0==f||(c===
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function(e,f,g){return{value:e,criteria:c.call(d,e,f,g)}}).sort(function(e,f){e=e.criteria;f=f.criteria;return e<f?-1:e>f?1:0}),"value")};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){if(!a)return[];if(a.toArray)return a.toArray();if(b.isArray(a))return a;if(b.isArguments(a))return k.call(a);return b.map(a,function(c){return c})};b.size=function(a){return b.toArray(a).length};b.first=function(a,c,
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d){return c&&!d?k.call(a,0,c):a[0]};b.rest=function(a,c,d){return k.call(a,b.isUndefined(c)||d?1:c)};b.last=function(a){return a[a.length-1]};b.compact=function(a){return b.select(a,function(c){return!!c})};b.flatten=function(a){return b.reduce(a,[],function(c,d){if(b.isArray(d))return c.concat(b.flatten(d));c.push(d);return c})};b.without=function(a){var c=b.rest(arguments);return b.select(a,function(d){return!b.include(c,d)})};b.uniq=function(a,c){return b.reduce(a,[],function(d,e,f){if(0==f||(c===
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true?b.last(d)!=e:!b.include(d,e)))d.push(e);return d})};b.intersect=function(a){var c=b.rest(arguments);return b.select(b.uniq(a),function(d){return b.all(c,function(e){return b.indexOf(e,d)>=0})})};b.zip=function(){for(var a=b.toArray(arguments),c=b.max(b.pluck(a,"length")),d=new Array(c),e=0;e<c;e++)d[e]=b.pluck(a,String(e));return d};b.indexOf=function(a,c){if(a.indexOf)return a.indexOf(c);for(var d=0,e=a.length;d<e;d++)if(a[d]===c)return d;return-1};b.lastIndexOf=function(a,c){if(a.lastIndexOf)return a.lastIndexOf(c);
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a)});return a};b.delay=function(a,c){var d=b.rest(arguments,2);return setTimeout(function(){return a.apply(a,d)},c)};b.defer=function(a){return b.delay.apply(b,[a,1].concat(b.rest(arguments)))};b.wrap=function(a,c){return function(){var d=[a].concat(b.toArray(arguments));return c.apply(c,d)}};b.compose=function(){var a=b.toArray(arguments);return function(){for(var c=b.toArray(arguments),d=a.length-1;d>=0;d--)c=[a[d].apply(this,c)];return c[0]}};b.keys=function(a){if(b.isArray(a))return b.range(0,
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function(a){return a};b.breakLoop=function(){throw o;};var v=0;b.uniqueId=function(a){var c=v++;return a?a+c:c};b.template=function(a,c){a=new Function("obj","var p=[],print=function(){p.push.apply(p,arguments);};with(obj){p.push('"+a.replace(/[\r\t\n]/g," ").split("<%").join("\t").replace(/((^|%>)[^\t]*)'/g,"$1\r").replace(/\t=(.*?)%>/g,"',$1,'").split("\t").join("');").split("%>").join("p.push('").split("\r").join("\\'")+"');}return p.join('');");return c?a(c):a};b.forEach=b.each;b.foldl=b.inject=
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this._chain)}});b.each(["concat","join","slice"],function(a){var c=Array.prototype[a];i.prototype[a]=function(){return n(c.apply(this._wrapped,arguments),this._chain)}});i.prototype.chain=function(){this._chain=true;return this};i.prototype.value=function(){return this._wrapped}})();
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function(a){return b.keys(a).length==0};b.isElement=function(a){return!!(a&&a.nodeType==1)};b.isArray=function(a){return a&&a.concat&&a.unshift};b.isArguments=function(a){return a&&b.isNumber(a.length)&&!b.isArray(a)&&!r.call(a,"length")};b.isFunction=function(a){return a&&a.constructor&&a.call&&a.apply};b.isString=function(a){return a===""||a&&a.charCodeAt&&a.substr};b.isNumber=function(a){return p.call(a)==="[object Number]"};b.isDate=function(a){return a&&a.getTimezoneOffset&&a.setUTCFullYear};
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b.isRegExp=function(a){return a&&a.test&&a.exec&&(a.ignoreCase||a.ignoreCase===false)};b.isNaN=function(a){return b.isNumber(a)&&isNaN(a)};b.isNull=function(a){return a===null};b.isUndefined=function(a){return typeof a=="undefined"};b.noConflict=function(){j._=n;return this};b.identity=function(a){return a};b.breakLoop=function(){throw m;};var s=0;b.uniqueId=function(a){var c=s++;return a?a+c:c};b.template=function(a,c){a=new Function("obj","var p=[],print=function(){p.push.apply(p,arguments);};with(obj){p.push('"+
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a.replace(/[\r\t\n]/g," ").split("<%").join("\t").replace(/((^|%>)[^\t]*)'/g,"$1\r").replace(/\t=(.*?)%>/g,"',$1,'").split("\t").join("');").split("%>").join("p.push('").split("\r").join("\\'")+"');}return p.join('');");return c?a(c):a};b.forEach=b.each;b.foldl=b.inject=b.reduce;b.foldr=b.reduceRight;b.filter=b.select;b.every=b.all;b.some=b.any;b.head=b.first;b.tail=b.rest;b.methods=b.functions;var l=function(a,c){return c?b(a).chain():a};b.each(b.functions(b),function(a){var c=b[a];i.prototype[a]=
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function(){o.call(arguments,this._wrapped);return l(c.apply(b,arguments),this._chain)}});b.each(["pop","push","reverse","shift","sort","splice","unshift"],function(a){var c=Array.prototype[a];i.prototype[a]=function(){c.apply(this._wrapped,arguments);return l(this._wrapped,this._chain)}});b.each(["concat","join","slice"],function(a){var c=Array.prototype[a];i.prototype[a]=function(){return l(c.apply(this._wrapped,arguments),this._chain)}});i.prototype.chain=function(){this._chain=true;return this};
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i.prototype.value=function(){return this._wrapped}})();
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@@ -8,7 +8,7 @@
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(function() {
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/*------------------------- Baseline setup ---------------------------------*/
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// ------------------------- Baseline setup ---------------------------------
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// Establish the root object, "window" in the browser, or "global" on the server.
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var root = this;
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@@ -38,9 +38,9 @@
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propertyIsEnumerable = Object.prototype.propertyIsEnumerable;
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// Current version.
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_.VERSION = '0.5.1';
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_.VERSION = '0.5.2';
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/*------------------------ Collection Functions: ---------------------------*/
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// ------------------------ Collection Functions: ---------------------------
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// The cornerstone, an each implementation.
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// Handles objects implementing forEach, arrays, and raw objects.
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@@ -234,7 +234,7 @@
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return _.toArray(obj).length;
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};
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/*-------------------------- Array Functions: ------------------------------*/
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// -------------------------- Array Functions: ------------------------------
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// Get the first element of an array. Passing "n" will return the first N
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// values in the array. Aliased as "head". The "guard" check allows it to work
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@@ -340,7 +340,7 @@
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}
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};
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/* ----------------------- Function Functions: -----------------------------*/
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// ----------------------- Function Functions: ------------------------------
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// Create a function bound to a given object (assigning 'this', and arguments,
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// optionally). Binding with arguments is also known as 'curry'.
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@@ -396,7 +396,7 @@
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};
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};
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/* ------------------------- Object Functions: ---------------------------- */
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// ------------------------- Object Functions: ------------------------------
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// Retrieve the names of an object's properties.
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_.keys = function(obj) {
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@@ -532,7 +532,7 @@
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return typeof obj == 'undefined';
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};
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/* -------------------------- Utility Functions: -------------------------- */
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// -------------------------- Utility Functions: ----------------------------
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// Run Underscore.js in noConflict mode, returning the '_' variable to its
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// previous owner. Returns a reference to the Underscore object.
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@@ -577,7 +577,7 @@
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return data ? fn(data) : fn;
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};
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/*------------------------------- Aliases ----------------------------------*/
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// ------------------------------- Aliases ----------------------------------
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_.forEach = _.each;
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_.foldl = _.inject = _.reduce;
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@@ -589,7 +589,7 @@
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_.tail = _.rest;
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_.methods = _.functions;
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/*------------------------ Setup the OOP Wrapper: --------------------------*/
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// ------------------------ Setup the OOP Wrapper: --------------------------
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// Helper function to continue chaining intermediate results.
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var result = function(obj, chain) {
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