Underscore.js 1.3.0
(c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
Underscore is freely distributable under the MIT license.
Portions of Underscore are inspired or borrowed from Prototype,
@@ -21,18 +21,17 @@
nativeLastIndexOf=ArrayProto.lastIndexOf,nativeIsArray=Array.isArray,nativeKeys=Object.keys,
- nativeBind=FuncProto.bind;
Export the Underscore object for Node.js and "CommonJS", with
-backwards-compatibility for the old require() API. If we're not in
-CommonJS, add _ to the global object.
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.
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.
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){varinitial=arguments.length>2;if(obj==null)obj=[];
@@ -77,7 +76,7 @@
});if(!initial)thrownewTypeError('Reduce of empty array with no initial value');returnmemo;
- };
Get the first element of an array. Passing n will return the first N
values in the array. Aliased as head. The guard check allows it to work
with _.map.
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.
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.
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.
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.
@@ -298,13 +297,13 @@
if(nativeIndexOf&&array.indexOf===nativeIndexOf)returnarray.indexOf(item);for(i=0,l=array.length;i<l;i++)if(iinarray&&array[i]===item)returni;return-1;
- };
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.
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.
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.
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.
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.
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.
JavaScript micro-templating, similar to John Resig's implementation.
Underscore templating handles arbitrary delimiters, preserves whitespace,
and correctly escapes quotes within interpolated code.
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.
Prototype.js
(or Ruby),
but without extending any of the built-in JavaScript objects. It's the
- tie to go along with jQuery's tux.
+ tie to go along with jQuery's tux,
+ and Backbone.js's suspenders.
Upgrade warning: version 1.3.0 removes AMD (RequireJS) support.
-
-
Object-Oriented and Functional Styles
-
-
- You can use Underscore in either an object-oriented or a functional style,
- depending on your preference. The following two lines of code are
- identical ways to double a list of numbers.
-
-
-
-_.map([1, 2, 3], function(n){ return n * 2; });
-_([1, 2, 3]).map(function(n){ return n * 2; });
-
-
- Using the object-oriented style allows you to chain together methods. Calling
- chain on a wrapped object will cause all future method calls to
- return wrapped objects as well. When you've finished the computation,
- use value to retrieve the final value. Here's an example of chaining
- together a map/flatten/reduce, in order to get the word count of
- every word in a song.
-
-
-
-var lyrics = [
- {line : 1, words : "I'm a lumberjack and I'm okay"},
- {line : 2, words : "I sleep all night and I work all day"},
- {line : 3, words : "He's a lumberjack and he's okay"},
- {line : 4, words : "He sleeps all night and he works all day"}
-];
-_.chain(lyrics)
- .map(function(line) { return line.words.split(' '); })
- .flatten()
- .reduce(function(counts, word) {
- counts[word] = (counts[word] || 0) + 1;
- return counts;
-}, {}).value();
-
-=> {lumberjack : 2, all : 4, night : 2 ... }
-
-
- In addition, the
- Array prototype's methods
- are proxied through the chained Underscore object, so you can slip a
- reverse or a push into your chain, and continue to
- modify the array.
-
+ You can use Underscore in either an object-oriented or a functional style,
+ depending on your preference. The following two lines of code are
+ identical ways to double a list of numbers.
+
+
+
+_.map([1, 2, 3], function(n){ return n * 2; });
+_([1, 2, 3]).map(function(n){ return n * 2; });
+
+
+ Using the object-oriented style allows you to chain together methods. Calling
+ chain on a wrapped object will cause all future method calls to
+ return wrapped objects as well. When you've finished the computation,
+ use value to retrieve the final value. Here's an example of chaining
+ together a map/flatten/reduce, in order to get the word count of
+ every word in a song.
+
+
+
+var lyrics = [
+ {line : 1, words : "I'm a lumberjack and I'm okay"},
+ {line : 2, words : "I sleep all night and I work all day"},
+ {line : 3, words : "He's a lumberjack and he's okay"},
+ {line : 4, words : "He sleeps all night and he works all day"}
+];
+
+_.chain(lyrics)
+ .map(function(line) { return line.words.split(' '); })
+ .flatten()
+ .reduce(function(counts, word) {
+ counts[word] = (counts[word] || 0) + 1;
+ return counts;
+}, {}).value();
+
+=> {lumberjack : 2, all : 4, night : 2 ... }
+
+
+ In addition, the
+ Array prototype's methods
+ are proxied through the chained Underscore object, so you can slip a
+ reverse or a push into your chain, and continue to
+ modify the array.
+
chain_.chain(obj)
Returns a wrapped object. Calling methods on this object will continue
- to return wrapped objects until value is used. (
- A more realistic example.)
+ to return wrapped objects until value is used.
var stooges = [{name : 'curly', age : 25}, {name : 'moe', age : 21}, {name : 'larry', age : 23}];
@@ -1283,7 +1407,7 @@
+ Removed AMD (RequireJS) support from Underscore. If you'd like to use
+ Underscore with RequireJS, you can load it as a normal script, wrap
+ or patch your copy, or download a forked version.
+
+
+
+
1.2.4 — Jan. 4, 2012
diff --git a/package.json b/package.json
index b65c188e8..0749177b4 100644
--- a/package.json
+++ b/package.json
@@ -5,8 +5,7 @@
"keywords" : ["util", "functional", "server", "client", "browser"],
"author" : "Jeremy Ashkenas ",
"contributors" : [],
- "dependencies" : [],
"repository" : {"type": "git", "url": "git://github.com/documentcloud/underscore.git"},
"main" : "underscore.js",
- "version" : "1.2.4"
+ "version" : "1.3.0"
}
diff --git a/underscore-min.js b/underscore-min.js
index 122914e24..fe1ffd20a 100644
--- a/underscore-min.js
+++ b/underscore-min.js
@@ -1,4 +1,4 @@
-// Underscore.js 1.2.4
+// Underscore.js 1.3.0
// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
// Underscore is freely distributable under the MIT license.
// Portions of Underscore are inspired or borrowed from Prototype,
@@ -7,25 +7,25 @@
// http://documentcloud.github.com/underscore
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+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(b.isArray(a)||b.isString(a))return a.length===0;for(var c in a)if(m.call(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]"};if(!b.isArguments(arguments))b.isArguments=function(a){return!(!a||!m.call(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.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.noConflict=function(){s._=G;return this};b.identity=function(a){return a};b.times=function(a,b,d){for(var e=0;e/g,">").replace(/"/g,""").replace(/'/g,"'").replace(/\//g,"/")};b.mixin=function(a){j(b.functions(a),function(c){J(c,b[c]=
+a[c])})};var K=0;b.uniqueId=function(a){var b=K++;return a?a+b:b};b.templateSettings={evaluate:/<%([\s\S]+?)%>/g,interpolate:/<%=([\s\S]+?)%>/g,escape:/<%-([\s\S]+?)%>/g};var u=/.^/;b.template=function(a,c){var d=b.templateSettings,d="var __p=[],print=function(){__p.push.apply(__p,arguments);};with(obj||{}){__p.push('"+a.replace(/\\/g,"\\\\").replace(/'/g,"\\'").replace(d.escape||u,function(a,b){return"',_.escape("+b.replace(/\\'/g,"'")+"),'"}).replace(d.interpolate||u,function(a,b){return"',"+b.replace(/\\'/g,
+"'")+",'"}).replace(d.evaluate||u,function(a,b){return"');"+b.replace(/\\'/g,"'").replace(/[\r\n\t]/g," ").replace(/\\\\/g,"\\")+";__p.push('"}).replace(/\r/g,"\\r").replace(/\n/g,"\\n").replace(/\t/g,"\\t")+"');}return __p.join('');",e=new Function("obj","_",d);return c?e(c,b):function(a){return e.call(this,a,b)}};b.chain=function(a){return b(a).chain()};var n=function(a){this._wrapped=a};b.prototype=n.prototype;var v=function(a,c){return c?b(a).chain():a},J=function(a,c){n.prototype[a]=function(){var a=
+i.call(arguments);H.call(a,this._wrapped);return v(c.apply(b,a),this._chain)}};b.mixin(b);j("pop,push,reverse,shift,sort,splice,unshift".split(","),function(a){var b=k[a];n.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 v(d,this._chain)}});j(["concat","join","slice"],function(a){var b=k[a];n.prototype[a]=function(){return v(b.apply(this._wrapped,arguments),this._chain)}});n.prototype.chain=function(){this._chain=
+true;return this};n.prototype.value=function(){return this._wrapped}}).call(this);
diff --git a/underscore.js b/underscore.js
index c8cd1fd0e..096a4800d 100644
--- a/underscore.js
+++ b/underscore.js
@@ -1,4 +1,4 @@
-// Underscore.js 1.2.4
+// Underscore.js 1.3.0
// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
// Underscore is freely distributable under the MIT license.
// Portions of Underscore are inspired or borrowed from Prototype,
@@ -48,26 +48,21 @@
// 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** and **"CommonJS"**, with
- // backwards-compatibility for the old `require()` API. If we're not in
- // CommonJS, add `_` to the global object.
+ // 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 if (typeof define === 'function' && define.amd) {
- // Register as a named module with AMD.
- define('underscore', function() {
- return _;
- });
} else {
- // Exported as a string, for Closure Compiler "advanced" mode.
root['_'] = _;
}
// Current version.
- _.VERSION = '1.2.4';
+ _.VERSION = '1.3.0';
// Collection Functions
// --------------------