core-js - npm Package Compare versions

Comparing version 0.1.5 to 0.2.0

bower.json

 {
   "name": "core.js",
   "main": "client/core.js",
-  "version": "0.1.5",
+  "version": "0.2.0",
   "description": "Standard Library",
@@ -26,8 +26,7 @@ "keywords": [
   "ignore": [
-    "**/.*",
+    "build",
     "node_modules",
-    "bower_components",
-    "test",
+    "src",
     "tests"
   ]
 }

client/core.min.js

 /**
- * Core.js 0.1.5
+ * Core.js 0.2.0
  * https://github.com/zloirock/core-js
@@ -7,3 +7,3 @@ * License: http://rock.mit-license.org
  */
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client/shim.js

 /**
- * Core.js 0.1.5
+ * Core.js 0.2.0
  * https://github.com/zloirock/core-js
@@ -37,4 +37,2 @@ * License: http://rock.mit-license.org
   , FOR_EACH        = 'forEach'
-  , CONTAINS        = 'contains'
-  , INCLUDES        = 'includes'
   , PROCESS         = 'process'
@@ -73,4 +71,3 @@ , CREATE_ELEMENT  = 'createElement'
   , path            = framework ? global : core
-  , DOT             = '.'
-  , SHARP           = '#';
+  , DOT             = '.';
 
@@ -108,3 +105,4 @@ // http://jsperf.com/core-js-isobject
 var apply = FunctionProto.apply
-  , call  = FunctionProto.call;
+  , call  = FunctionProto.call
+  , REFERENCE_GET;
 // Placeholder
@@ -188,4 +186,3 @@ core._ = path._ = framework ? path._ || {} : {};
   // Dummy, fix for not array-like ES3 string in es5 module
-  , ES5Object        = Object
-  , Dict;
+  , ES5Object        = Object;
 // 19.1.2.1 Object.assign(target, source, ...)
@@ -348,2 +345,15 @@ var assign = Object.assign || function(target, source){
 }
+function createPointAt(toString){
+  return function(pos){
+    var s = String(this)
+      , i = toInteger(pos)
+      , l = s.length
+      , a, b;
+    if(i < 0 || i >= l)return toString ? '' : undefined;
+    a = s.charCodeAt(i);
+    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
+      ? toString ? s.charAt(i) : a
+      : toString ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
+  }
+}
 
@@ -366,13 +376,2 @@ // Assertion & errors
 }
-function deprecated(fn, name, alter){
-  var shown, msg = name + ' is deprecated and will be removed in the future!';
-  if(alter)msg += ' Use ' + alter + DOT;
-  return function(){
-    if(!shown && global.console && console.warn){
-      shown = true;
-      console.warn(msg);
-    }
-    return fn.apply(this, arguments);
-  }
-}
 
@@ -431,5 +430,2 @@ // Property descriptors & Symbol
   Constructor[PROTOTYPE] = create(proto || IteratorPrototype, {next: descriptor(1, next)});
-  // 22.1.5.2.3 %ArrayIteratorPrototype%[@@toStringTag]
-  // 23.1.5.2.3 %MapIteratorPrototype%[@@toStringTag]
-  // 23.2.5.2.3 %SetIteratorPrototype%[@@toStringTag]
   setToStringTag(Constructor, NAME + ' Iterator');
@@ -448,4 +444,9 @@ }
     setIterator(proto, iter);
-    // FF fix
-    if(HAS_FF_ITER)setIterator(getPrototypeOf(iter.call(new Constructor)), returnThis);
+    if(iter !== value){
+      var iterProto = getPrototypeOf(iter.call(new Constructor));
+      // Set @@toStringTag to native iterators
+      setToStringTag(iterProto, NAME + ' Iterator', true);
+      // FF fix
+      HAS_FF_ITER && setIterator(iterProto, returnThis);
+    }
   }
@@ -955,17 +956,5 @@ // Plug for library
     // 21.1.3.3 String.prototype.codePointAt(pos)
-    codePointAt: function(pos){
-      var s = String(this)
-        , i = toInteger(pos)
-        , l = s.length
-        , a, b;
-      if(i < 0 || i >= l)return;
-      a = s.charCodeAt(i);
-      if(a < 0xd800 || a > 0xdbff || i + 1 === l)return a;
-      b = s.charCodeAt(i + 1);
-      return b < 0xdc00 || b > 0xdfff ? a : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
-    },
+    codePointAt: createPointAt(false),
     // String.prototype.includes(searchString, position = 0)
     includes: includes,
-    // Deprecated name of String#includes
-    contains: deprecated(includes, STRING+SHARP+CONTAINS, STRING+SHARP+INCLUDES),
     // 21.1.3.7 String.prototype.endsWith(searchString [, endPosition])
@@ -997,3 +986,3 @@ endsWith: function(searchString, endPosition /* = @length */){
     from: function(arrayLike, mapfn /* -> it */, that /* = undefind */){
-      var O       = ES5Object(arrayLike)
+      var O       = Object(arrayLike)
         , result  = new (generic(this, Array))
@@ -1004,5 +993,4 @@ , mapping = mapfn !== undefined
         , length;
-      if(isIterable(O))for(var iter = getIterator(O), step; !(step = iter.next()).done;){
+      if(isIterable(O))for(var iter = getIterator(O), step; !(step = iter.next()).done; index++){
         result[index] = mapping ? f(step.value, index) : step.value;
-        index++;
       } else for(length = toLength(O.length); length > index; index++){
@@ -1480,2 +1468,56 @@ result[index] = mapping ? f(O[index], index) : O[index];
 /******************************************************************************
+ * Module : es7                                                               *
+ ******************************************************************************/
+
+!function(){
+  $define(PROTO, ARRAY, {
+    // https://github.com/domenic/Array.prototype.includes
+    includes: createArrayContains(true)
+  });
+  $define(PROTO, STRING, {
+    // https://github.com/mathiasbynens/String.prototype.at
+    at: createPointAt(true)
+  });
+  $define(STATIC, OBJECT, {
+    // https://github.com/rwaldron/tc39-notes/blob/master/es6/2014-04/apr-9.md#51-objectentries-objectvalues
+    values: createObjectToArray(false),
+    entries: createObjectToArray(true)
+  });
+  $define(STATIC, REGEXP, {
+    // https://gist.github.com/kangax/9698100
+    escape: createReplacer(/([\\\-[\]{}()*+?.,^$|])/g, '\\$1', true)
+  });
+}();
+
+/******************************************************************************
+ * Module : es7_refs                                                          *
+ ******************************************************************************/
+
+// https://github.com/zenparsing/es-abstract-refs
+!function(REFERENCE){
+  REFERENCE_GET = Symbol(SYMBOL+DOT+REFERENCE+'Get');
+  var REFERENCE_SET = Symbol(SYMBOL+DOT+REFERENCE+SET)
+    , REFERENCE_DELETE = Symbol(SYMBOL+DOT+REFERENCE+'Delete');
+  
+  $define(STATIC, SYMBOL, {
+    referenceGet: REFERENCE_GET,
+    referenceSet: REFERENCE_SET,
+    referenceDelete: REFERENCE_DELETE
+  });
+  
+  FunctionProto[REFERENCE_GET] || hidden(FunctionProto, REFERENCE_GET, returnThis);
+  
+  function setMapMethods(Constructor){
+    if(Constructor){
+      var MapProto = Constructor[PROTOTYPE];
+      MapProto[REFERENCE_GET] || hidden(MapProto, REFERENCE_GET, MapProto.get);
+      MapProto[REFERENCE_SET] || hidden(MapProto, REFERENCE_SET, MapProto.set);
+      MapProto[REFERENCE_DELETE] || hidden(MapProto, REFERENCE_DELETE, MapProto['delete']);
+    }
+  }
+  setMapMethods(Map);
+  setMapMethods(WeakMap);
+}('reference');
+
+/******************************************************************************
  * Module : es6_iterators                                                     *
@@ -1488,5 +1530,6 @@ ******************************************************************************/
     // Safari define byggy iterators w/o `next`
-    , buggy = 'keys' in ArrayProto && !('next' in [].keys());
+    , buggy = 'keys' in ArrayProto && !('next' in [].keys())
+    , at = createPointAt(true);
   
-  function defineStdIterators(Base, NAME, DEFAULT, Constructor, next){
+  function defineStdIterators(Base, NAME, Constructor, next, DEFAULT){
     function createIter(kind){
@@ -1497,4 +1540,8 @@ return function(){
     }
+    // 21.1.5.2.2 %StringIteratorPrototype%[@@toStringTag]
+    // 22.1.5.2.3 %ArrayIteratorPrototype%[@@toStringTag]
+    // 23.1.5.2.3 %MapIteratorPrototype%[@@toStringTag]
+    // 23.2.5.2.3 %SetIteratorPrototype%[@@toStringTag]
     createIterator(Constructor, NAME, next);
-    $define(PROTO + FORCED * buggy, NAME, {
+    DEFAULT && $define(PROTO + FORCED * buggy, NAME, {
       // 22.1.3.4 Array.prototype.entries()
@@ -1513,2 +1560,3 @@ // 23.1.3.4 Map.prototype.entries()
     });
+    // 21.1.3.27 String.prototype[@@iterator]()
     // 22.1.3.30 Array.prototype[@@iterator]()
@@ -1520,4 +1568,19 @@ // 23.1.3.12 Map.prototype[@@iterator]()
   
+  // 21.1.5.1 CreateStringIterator Abstract Operation
+  defineStdIterators(String, STRING, function(iterated){
+    set(this, ITER, {o: String(iterated), i: 0});
+  // 21.1.5.2.1 %StringIteratorPrototype%.next()
+  }, function(){
+    var iter     = this[ITER]
+      , iterated = iter.o
+      , index    = iter.i
+      , point;
+    if(index >= iterated.length)return iterResult(1);
+    point = at.call(iterated, index);
+    iter.i += point.length;
+    return iterResult(0, point);
+  });
+  
   // 22.1.5.1 CreateArrayIterator Abstract Operation
-  defineStdIterators(Array, ARRAY, VALUE, function(iterated, kind){
+  defineStdIterators(Array, ARRAY, function(iterated, kind){
     set(this, ITER, {o: ES5Object(iterated), i: 0, k: kind});
@@ -1536,11 +1599,9 @@ // 22.1.5.2.1 %ArrayIteratorPrototype%.next()
     return iterResult(0, value);
-  });
+  }, VALUE);
   
-  // 21.1.3.27 String.prototype[@@iterator]() - SHAM, TODO
-  defineIterator(String, STRING, Iterators[ARRAY]);
   // argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
   Iterators[ARGUMENTS] = Iterators[ARRAY];
-  
+    
   // 23.1.5.1 CreateMapIterator Abstract Operation
-  defineStdIterators(Map, MAP, KEY+VALUE, function(iterated, kind){
+  defineStdIterators(Map, MAP, function(iterated, kind){
     var keys;
@@ -1566,6 +1627,6 @@ if(Map[SHIM])keys = getValues(iterated[COLLECTION_KEYS]);
     return iterResult(0, value);
-  });
+  }, KEY+VALUE);
   
   // 23.2.5.1 CreateSetIterator Abstract Operation
-  defineStdIterators(Set, SET, VALUE, function(iterated, kind){
+  defineStdIterators(Set, SET, function(iterated, kind){
     var keys;
@@ -1585,3 +1646,3 @@ if(Set[SHIM])keys = getValues(iterated[COLLECTION_KEYS]);
     return iterResult(0, iter.k == KEY+VALUE ? [key, key] : key);
-  });
+  }, VALUE);
 }();
@@ -1588,0 +1649,0 @@

client/shim.min.js

 /**
- * Core.js 0.1.5
+ * Core.js 0.2.0
  * https://github.com/zloirock/core-js
@@ -7,3 +7,3 @@ * License: http://rock.mit-license.org
  */
-!function(nb,x,f){"use strict";function t(a){return null!=a&&("object"==typeof a||"function"==typeof a)}function h(a){return"function"==typeof a}function X(a,c,e){a&&(i(a=e?a:a[b],cb)||d(a,cb,c))}function fb(a){return a==f?a===f?"Undefined":"Null":Qc.call(a).slice(8,-1)}function eb(b){var a,c=fb(b);return c==z&&(a=b[cb])?i(Mc,a)?"~"+a:a:c}function ob(){for(var a=arguments.length,c=F(a),b=0,d=Pb._,e=!1;a>b;)(c[b]=arguments[b++])===d&&(e=!0);return Tc(this,c,a,e,d,!1)}function Tc(a,b,d,c,e,f,g){return A(a),function(){var h,k=f?g:this,l=arguments.length,i=0,j=0;if(!c&&!l)return N(a,b,k);if(h=b.slice(),c)for(;d>i;i++)h[i]===e&&(h[i]=arguments[j++]);for(;l>j;)h.push(arguments[j++]);return N(a,h,k)}}function j(a,b,c){if(A(a),~c&&b===f)return a;switch(c){case 1:return function(c){return a.call(b,c)};case 2:return function(c,d){return a.call(b,c,d)};case 3:return function(c,d,e){return a.call(b,c,d,e)}}return function(){return a.apply(b,arguments)}}function N(b,a,c){var 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package.json

 {
   "name": "core-js",
   "description": "Standard library",
-  "version": "0.1.5",
+  "version": "0.2.0",
   "repository": {
@@ -6,0 +6,0 @@ "type": "git",

README.md

 # Core.js
-Alternative modular compact (max. ~22kb w/o gzip) standard library for JavaScript. Includes polyfills for [ECMAScript 5](#ecmascript-5), [ECMAScript 6](#ecmascript-6): [symbols](#ecmascript-6-symbols), [collections](#ecmascript-6-collections), [iterators](#ecmascript-6-iterators), [promises](#ecmascript-6-promises); [setImmediate](#setimmediate), [array generics](#mozilla-javascript-array-generics), [console cap](#console). Additional functionality: [dictionaries](#dict), extended [partial application](#partial-application), [date formatting](#date-formatting) and some other sugar.
+Alternative modular compact (max. ~23kb w/o gzip) standard library for JavaScript. Includes polyfills for [ECMAScript 5](#ecmascript-5), [ECMAScript 6](#ecmascript-6): [symbols](#ecmascript-6-symbols), [collections](#ecmascript-6-collections), [iterators](#ecmascript-6-iterators), [promises](#ecmascript-6-promises); [setImmediate](#setimmediate), [array generics](#mozilla-javascript-array-generics), [console cap](#console). Some additional functionality such as [dictionaries](#dict), [extended partial application](#partial-application), [date formatting](#date-formatting).
 
@@ -27,2 +27,4 @@ [Example](http://goo.gl/mfHYm2):
   - [ECMAScript 6: Promises](#ecmascript-6-promises)
+  - [ECMAScript 7](#ecmascript-7)
+  - [ECMAScript 7: Abstract References](#ecmascript-7-abstract-references)
   - [Mozilla JavaScript: Array generics](#mozilla-javascript-array-generics)
@@ -40,2 +42,3 @@ - [setTimeout / setInterval](#settimeout--setinterval)
 - [Install](#install)
+- [Changelog](#changelog)
 
@@ -76,3 +79,3 @@ ## API:
 ### ECMAScript 6
-Module `es6`.
+Module `es6`. [Symbols](#ecmascript-6-symbols), [collections](#ecmascript-6-collections), [iterators](#ecmascript-6-iterators) and [promises](#ecmascript-6-promises) in separate modules.
 #### ECMAScript 6 Object
@@ -84,5 +87,5 @@ ```javascript
   .setPrototypeOf(target, proto | null) -> target, sham(ie10+)
-  #toString() -> string, fix for @@toStringTag
+  #toString() -> string, fix for @@toStringTag support
 ```
-[Example](http://goo.gl/IPehks):
+[Example](http://goo.gl/VzmY3j):
 ```javascript
@@ -98,2 +101,12 @@ var foo = {q: 1, w: 2}
 Object.is(42, '42'); // => false
+
+function Parent(){}
+function Child(){}
+Object.setPrototypeOf(Child.prototype, Parent.prototype);
+new Child instanceof Child;  // => true
+new Child instanceof Parent; // => true
+
+var O = {};
+O[Symbol.toStringTag] = 'Foo';
+'' + O; // => '[object Foo]'
 ```
@@ -110,3 +123,3 @@ #### ECMAScript 6 Array
 ```
-[Example](http://goo.gl/gMYP1H):
+[Example](http://goo.gl/nxmJTe):
 ```javascript
@@ -131,6 +144,5 @@ Array.from(new Set([1, 2, 3, 2, 1]));      // => [1, 2, 3]
 
-Array(5).map(function(){
-  return 42;
-});                // => [undefined × 5], .map ignore holes
 Array(5).fill(42); // => [42, 42, 42, 42, 42]
+
+[1, 2, 3, 4, 5].copyWithin(0, 3); // => [4, 5, 3, 4, 5]
 ```
@@ -147,3 +159,3 @@ #### ECMAScript 6 String
 ```
-[Example](http://goo.gl/JKrMn5):
+[Example](http://goo.gl/uhvQG4):
 ```javascript
@@ -158,2 +170,5 @@ 'foobarbaz'.includes('bar');      // => true
 'string'.repeat(3); // => 'stringstringstring'
+
+'𠮷'.codePointAt(0); // => 134071
+String.fromCodePoint(97, 134071, 98); // => 'a𠮷b'
 ```
@@ -197,4 +212,4 @@ #### ECMAScript 6 Number & Math
   .keyFor(symbol) -> key
-  .iterator -> symbol
-  .toStringTag -> symbol
+  .iterator -> @@iterator
+  .toStringTag -> @@toStringTag
   .pure(description?) -> symbol || string
@@ -376,9 +391,9 @@ .set(object, key, val) -> object
 Arguments
-  #@@iterator() -> iterator (sham)
+  #@@iterator() -> iterator
 ```
-[Example](http://goo.gl/iwLk0N):
+[Example](http://goo.gl/3s27dC):
 ```javascript
-var string = 'abc';
+var string = 'a𠮷b';
 
-for(var val of string)console.log(val);         // => 'a', 'b', 'c'
+for(var val of string)console.log(val);         // => 'a', '𠮷', 'b'
 
@@ -485,3 +500,3 @@ var array = ['a', 'b', 'c'];
 ```
-[Example](http://goo.gl/vGrtUC):
+Basic [example](http://goo.gl/vGrtUC):
 ```javascript
@@ -500,3 +515,3 @@ var log = console.log.bind(console);
 }).then(function(result){
-  log(result);                 // => 202, after 10 sec. 
+  log(result);                 // => 202, after 10 sec.
 }).then(function(){
@@ -509,2 +524,144 @@ log('immediately after');    // => immediately after
 ```
+`Promise.resolve` and `Promise.reject` [example](http://goo.gl/vr8TN3):
+```javascript
+Promise.resolve(42).then(log); // => 42
+Promise.reject(42).catch(log); // => 42
+
+Promise.resolve($.getJSON('/data.json')); // => ES6 promise
+```
+`Promise.all` [example](http://goo.gl/RdoDBZ):
+```javascript
+Promise.all([
+  'foo',
+  sleepRandom(5),
+  sleepRandom(15),
+  sleepRandom(10)  // after 15 sec:
+]).then(log);      // => ['foo', 956, 85, 382]
+```
+`Promise.race` [example](http://goo.gl/L8ovkJ):
+```javascript
+function timeLimit(promise, time){
+  return Promise.race([promise, new Promise(function(resolve, reject){
+    setTimeout(reject, time * 1e3, Error('Await > ' + time + ' sec'));
+  })]);
+}
+
+timeLimit(sleepRandom(5), 10).then(log);   // => 853, after 5 sec.
+timeLimit(sleepRandom(15), 10).catch(log); // Error: Await > 10 sec
+```
+ECMAScript 7 [async functions](https://github.com/lukehoban/ecmascript-asyncawait) [example](http://goo.gl/rksdJx):
+```javascript
+var delay = time => new Promise(resolve => setTimeout(resolve, time))
+
+async function sleepRandom(time){
+  await delay(time * 1e3);
+  return 0 | Math.random() * 1e3;
+}
+async function sleepError(time, msg){
+  await delay(time * 1e3);
+  throw Error(msg);
+}
+
+(async () => {
+  try {
+    log('Run');                // => Run
+    log(await sleepRandom(5)); // => 936, after 5 sec.
+    var [a, b, c] = await Promise.all([
+      sleepRandom(5),
+      sleepRandom(15),
+      sleepRandom(10)
+    ]);
+    log(a, b, c);              // => 210 445 71, after 15 sec.
+    await sleepError(5, 'Irror!');
+    log('Will not be displayed');
+  } catch(e){
+    log(e);                    // => Error: 'Irror!', after 5 sec.
+  }
+})();
+```
+### ECMAScript 7
+Module `es7`.
+`Array#includes` [proposal](https://github.com/domenic/Array.prototype.includes).
+`String#at` [proposal](https://github.com/mathiasbynens/String.prototype.at).
+`Object.values`, `Object.entries` [tc39 discuss](https://github.com/rwaldron/tc39-notes/blob/master/es6/2014-04/apr-9.md#51-objectentries-objectvalues).
+`RegExp.escape` [proposal](https://gist.github.com/kangax/9698100).
+```javascript
+Array
+  #includes(var, from?) -> bool
+String
+  #at(index) -> string
+Object
+  .values(object) -> array
+  .entries(object) -> array
+RegExp
+  .escape(str) -> str
+```
+[Examples](http://goo.gl/4HcpLK):
+```javascript
+[1, 2, 3].includes(2);        // => true
+[1, 2, 3].includes(4);        // => false
+[1, 2, 3].includes(2, 2);     // => false
+
+[NaN].indexOf(NaN);           // => -1
+[NaN].includes(NaN);          // => true
+Array(1).indexOf(undefined);  // => -1
+Array(1).includes(undefined); // => true
+
+'a𠮷b'.at(1);        // => '𠮷'
+'a𠮷b'.at(1).length; // => 2
+
+Object.values({a: 1, b: 2, c: 3});  // => [1, 2, 3]
+Object.entries({a: 1, b: 2, c: 3}); // => [['a', 1], ['b', 2], ['c', 3]]
+
+RegExp.escape('Hello -[]{}()*+?.,\\^$|'); // => 'Hello \-\[\]\{\}\(\)\*\+\?\.\,\\\^\$\|'
+```
+### ECMAScript 7: Abstract References
+Module `es7_refs`. Symbols and methods for [abstract references](https://github.com/zenparsing/es-abstract-refs). At the moment, they are supported only by several translators, such as [6to5](https://github.com/6to5/6to5).
+```javascript
+Symbol
+  .referenceGet -> @@referenceGet
+  .referenceSet -> @@referenceSet
+  .referenceDelete -> @@referenceDelete
+Function
+  #@@referenceGet() -> @
+Map
+  #@@referenceGet ==== #get
+  #@@referenceSet ==== #set
+  #@@referenceDelete ==== #delete
+WeakMap
+  #@@referenceGet ==== #get
+  #@@referenceSet ==== #set
+  #@@referenceDelete ==== #delete
+```
+Private properties [example](http://goo.gl/sO0KHa) with [`WeakMaps`](#weakmap), class and basic abstract refs syntax:
+```javascript
+var Person = (NAME => class {
+  constructor(name){
+    this::NAME = name;
+  }
+  getName(){
+    return this::NAME;
+  }
+})(new WeakMap);
+
+var person = new Person('Vasya');
+console.log(person.getName());          // => 'Vasya'
+for(var key in person)console.log(key);
+```
+Virtual methods [example](http://goo.gl/GJmEfl):
+```javascript
+var {toString} = {};
+console.log([]::toString()); // => '[object Array]'
+
+function sum(){
+  var {reduce} = [];
+  return arguments::reduce((a, b)=> a + b);
+}
+console.log(sum(1, 2, 3, 4, 5)); // => 15
+```
+Methods from [Dict module](#dict) override `@@referenceGet` method, [example](http://goo.gl/vgIKJ2):
+```javascript
+var {filter, map} = Dict;
+var dict = {q: 1, w: 2, e: 3}::filter((v, k) => k != 'w')::map(v => v * v); // => {"q":1,"e":9}
+```
 ### Mozilla JavaScript: Array generics
@@ -634,3 +791,51 @@ Module `array_statics`.
 ```
+`Object.define` and `Object.make` [examples](http://goo.gl/rtpD5Z):
+```javascript
+// Before:
+Object.defineProperty(target, 'c', {
+  enumerable: true,
+  configurable: true,
+  get: function(){
+    return this.a + this.b;
+  }
+});
 
+// After:
+Object.define(target, {
+  get c(){
+    return this.a + this.b;
+  }
+});
+
+// Shallow object cloning with prototype and descriptors:
+var copy = Object.make(Object.getPrototypeOf(src), src);
+
+// Simple inheritance:
+function Vector2D(x, y){
+  this.x = x;
+  this.y = y;
+}
+Object.define(Vector2D.prototype, {
+  get xy(){
+    return Math.hypot(this.x, this.y);
+  }
+});
+function Vector3D(x, y, z){
+  Vector2D.apply(this, arguments);
+  this.z = z;
+}
+Vector3D.prototype = Object.make(Vector2D.prototype, {
+  constructor: Vector3D,
+  get xyz(){
+    return Math.hypot(this.x, this.y, this.z);
+  }
+});
+
+var vector = new Vector3D(9, 12, 20);
+console.log(vector.xy);  // => 15
+console.log(vector.xyz); // => 25
+vector.y++;
+console.log(vector.xy);  // => 15.811388300841896
+console.log(vector.xyz); // => 25.495097567963924
+```
 ### Dict
@@ -659,5 +864,2 @@ Module `dict`.
   .turn(object, fn(memo, val, key, @), memo = new @) -> memo
-Object
-  .values(object) -> array
-  .entries(object) -> array
 ```
@@ -683,2 +885,82 @@ `Dict` create object without prototype from iterable or simple object. [Example](http://goo.gl/pnp8Vr):
 ```
+`Dict.keys`, `Dict.values` and `Dict.entries` return iterators for objects, [examples](http://goo.gl/JRkgM8):
+```javascript
+var dict = {a: 1, b: 2, c: 3};
+
+for(var key of Dict.keys(dict))console(key); // => 'a', 'b', 'c'
+
+for(var [key, val] of Dict.entries(dict)){
+  console(key); // => 'a', 'b', 'c'
+  console(val); // => 1, 2, 3
+}
+
+$for(Dict.values(dict)).of(console); // => 1, 2, 3
+
+new Map(Dict.entries(dict)); // => Map {a: 1, b: 2, c: 3}
+
+new Map((for([k, v] of Dict.entries(dict))if(v % 2)[k + k, v * v])); // =>  Map {aa: 1, cc: 9}
+```
+Other methods of `Dict` module are static equialents of `Array.prototype` methods for dictionaries, [examples](http://goo.gl/yARYXR):
+```javascript
+var dict = {a: 1, b: 2, c: 3};
+
+Dict.forEach(dict, console.log, console);
+// => 1, 'a', {a: 1, b: 2, c: 3}
+// => 2, 'b', {a: 1, b: 2, c: 3}
+// => 3, 'c', {a: 1, b: 2, c: 3}
+
+Dict.map(dict, function(it){
+  return it * it;
+}); // => {a: 1, b: 4, c: 9}
+
+Dict.mapPairs(dict, function(val, key){
+  if(key != 'b')return [key + key, val * val];
+}); // => {aa: 1, cc: 9}
+
+Dict.filter(dict, function(it){
+  return it % 2;
+}); // => {a: 1, c: 3}
+
+Dict.some(dict, function(it){
+  return it === 2;
+}); // => true
+
+Dict.every(dict, function(it){
+  return it === 2;
+}); // => false
+
+Dict.find(dict, function(it){
+  return it > 2;
+}); // => 3
+Dict.find(dict, function(it){
+  return it > 4;
+}); // => undefined
+
+Dict.findKey(dict, function(it){
+  return it > 2;
+}); // => 'c'
+Dict.findKey(dict, function(it){
+  return it > 4;
+}); // => undefined
+
+Dict.keyOf(dict, 2);    // => 'b'
+Dict.keyOf(dict, 4);    // => undefined
+
+Dict.includes(dict, 2); // => true
+Dict.includes(dict, 4); // => false
+
+Dict.reduce(dict, function(memo, it){
+  return memo + it;
+});     // => 6
+Dict.reduce(dict, function(memo, it){
+  return memo + it;
+}, ''); // => '123'
+
+Dict.turn(dict, function(memo, it, key){
+  memo[key + key] = it;
+});     // => {aa: 1, bb: 2, cc: 3}
+Dict.turn(dict, function(memo, it, key){
+  it % 2 && memo.push(key + it);
+}, []); // => ['a1', 'c3']
+```
 ### Partial application
@@ -694,2 +976,40 @@ Module `binding`.
 ```
+`Fnction#part` partial apply function without `this` binding. Uses global variable `_` (`core._` for builds without extension of native objects) as placeholder. [Examples](http://goo.gl/ROgBsL):
+```javascript
+var fn1 = log.part(1, 2);
+fn1(3, 4);    // => 1, 2, 3, 4
+
+var fn2 = log.part(_, 2, _, 4);
+fn2(1, 3);    // => 1, 2, 3, 4
+
+var fn3 = log.part(1, _, _, 4);
+fn3(2, 3);    // => 1, 2, 3, 4
+
+fn2(1, 3, 5); // => 1, 2, 3, 4, 5
+fn2(1);       // => 1, 2, undefined, 4
+```
+Method `Function#by` is analogue of `Function#bind` with the ability to use placeholder:
+```javascript
+var fn = console.log.by(console, _, 2, _, 4);
+fn(1, 3, 5); // => 1, 2, 3, 4, 5
+```
+Method `Object#[_]` extracts bound method from object, [examples](http://goo.gl/dQsSTi):
+```javascript
+['foobar', 'foobaz', 'barbaz'].filter(/bar/[_]('test')); // => ['foobar', 'barbaz']
+
+var has = {}.hasOwnProperty[_]('call');
+
+log(has({key: 42}, 'foo')); // => false
+log(has({key: 42}, 'key')); // => true
+
+var array = []
+  , push  = array[_]('push');
+push(1);
+push(2, 3);
+log(array); // => [1, 2, 3];
+```
+Method `Function#only` limits number of arguments. [Example](http://goo.gl/ROgBsL):
+```javascript
+[1, 2, 3].forEach(log.only(1)); // => 1, 2, 3
+```
 ### Date formatting
@@ -748,5 +1068,15 @@ Module `date`.
 Array
-  #includes(var, from?) -> bool
   #turn(fn(memo, val, index, @), memo = []) -> memo
 ```
+Method `Array#turn` reduce array to object, [example](http://goo.gl/zZbvq7):
+```javascript
+[1, 2, 3, 4, 5].turn(function(memo, it){
+  memo['key' + it] = !!(it % 2);
+}, {}); // => {key1: true, key2: false, key3: true, key4: false, key5: true}
+
+[1, 2, 3, 4, 5, 6, 7, 8, 9].turn(function(memo, it){
+  it % 2 && memo.push(it * it);
+  if(memo.length == 3)return false;
+}); // => [1, 9, 25]
+```
 ### Number
@@ -760,2 +1090,42 @@ Module `number`.
 ```
+Number Iterator [examples](http://goo.gl/mkReUE):
+```javascript
+for(var i of 3)console(i); // => 0, 1, 2
+
+$for(3).of(console); // => 0, 1, 2
+
+Array.from(10, Math.random); // => [0.9817775336559862, 0.02720663254149258, ...]
+
+Array.from(10); // => [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+Array.from(10, function(it){
+  return this + it * it;
+}, .42); // => [0.42, 1.42, 4.42, 9.42, 16.42, 25.42, 36.42, 49.42, 64.42, 81.42]
+
+// Comprehensions:
+[for(i of 10)if(i % 2)i * i]; // => [1, 9, 25, 49, 81]
+
+Dict((for(i of 3)['key' + i, !(i % 2)])); // => {key0: true, key1: false, key2: true}
+
+$for(10).filter(function(i){
+  return i % 2;
+}).array(function(i){
+  return i * i;
+});  // => [1, 9, 25, 49, 81]
+
+Dict($for(3).map(function(i){
+  return ['key' + i, !(i % 2)];
+})); // => {key0: true, key1: false, key2: true}
+```
+`Math` methods in `Number.prototype` [examples](http://goo.gl/06bs1k):
+```javascript
+3..pow(3);           // => 27
+(-729).abs().sqrt(); // => 27
+
+10..random(20);         // => Random number (10, 20), for example, 16.818793776910752
+10..random(20).floor(); // => Random integer [10, 19], for example, 16
+
+var array = [1, 2, 3, 4, 5];
+array[array.length.random().floor()]; // => Random element, for example, 4
+```
 ### Escaping characters
@@ -768,2 +1138,3 @@ Module `string`.
 ```
+[Examples](http://goo.gl/6bOvsQ):
 ```javascript
@@ -773,10 +1144,2 @@ '<script>doSomething();</script>'.escapeHTML(); // => '&lt;script&gt;doSomething();&lt;/script&gt;'
 ```
-Module `regexp`.
-```javascript
-RegExp
-  .escape(str) -> str
-```
-```javascript
-RegExp.escape('Hello -[]{}()*+?.,\\^$|'); // => 'Hello \-\[\]\{\}\(\)\*\+\?\.\,\\\^\$\|'
-```
 
@@ -810,2 +1173,40 @@ ## Install
 ```
+## Changelog
+**0.2.0** - *2014.12.06*
+  * added `es7`, `es7_refs` modules
+  * added `String#at`
+  * added real String Iterator, older versions used Array Iterator
+  * added abstract references support:
+    * added `Symbol.referenceGet`
+    * added `Symbol.referenceSet`
+    * added `Symbol.referenceDelete`
+    * added `Function#@@referenceGet`
+    * added `Map#@@referenceGet`
+    * added `Map#@@referenceSet`
+    * added `Map#@@referenceDelete`
+    * added `WeakMap#@@referenceGet`
+    * added `WeakMap#@@referenceSet`
+    * added `WeakMap#@@referenceDelete`
+    * added `Dict.{...methods}[@@referenceGet]`
+  * removed deprecated `.contains` methods
+  * some fixes
 
+**0.1.5** - *2014.12.01* - **ES6**:
+  * added `Array#copyWithin`
+  * added `String#codePointAt`
+  * added `String.fromCodePoint`
+
+**0.1.4** - *2014.11.27*
+  * added `Dict.mapPairs`
+
+**0.1.3** - *2014.11.20* - **TC39 November meeting**:
+  * `.contains` -> `.includes`
+    * `String#contains` -> `String#includes`
+    * `Array#contains` -> `Array#includes`
+    * `Dict.contains` -> `Dict.includes`
+  * removed `WeakMap#clear`
+  * removed `WeakSet#clear`
+
+**0.1.2** - *2014.11.19* - **Map & Set bug fix**
+
+**0.1.1** - *2014.11.18* - **Public release**

shim.js

 /**
- * Core.js 0.1.5
+ * Core.js 0.2.0
  * https://github.com/zloirock/core-js
@@ -37,4 +37,2 @@ * License: http://rock.mit-license.org
   , FOR_EACH        = 'forEach'
-  , CONTAINS        = 'contains'
-  , INCLUDES        = 'includes'
   , PROCESS         = 'process'
@@ -73,4 +71,3 @@ , CREATE_ELEMENT  = 'createElement'
   , path            = framework ? global : core
-  , DOT             = '.'
-  , SHARP           = '#';
+  , DOT             = '.';
 
@@ -108,3 +105,4 @@ // http://jsperf.com/core-js-isobject
 var apply = FunctionProto.apply
-  , call  = FunctionProto.call;
+  , call  = FunctionProto.call
+  , REFERENCE_GET;
 // Placeholder
@@ -188,4 +186,3 @@ core._ = path._ = framework ? path._ || {} : {};
   // Dummy, fix for not array-like ES3 string in es5 module
-  , ES5Object        = Object
-  , Dict;
+  , ES5Object        = Object;
 // 19.1.2.1 Object.assign(target, source, ...)
@@ -348,2 +345,15 @@ var assign = Object.assign || function(target, source){
 }
+function createPointAt(toString){
+  return function(pos){
+    var s = String(this)
+      , i = toInteger(pos)
+      , l = s.length
+      , a, b;
+    if(i < 0 || i >= l)return toString ? '' : undefined;
+    a = s.charCodeAt(i);
+    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
+      ? toString ? s.charAt(i) : a
+      : toString ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
+  }
+}
 
@@ -366,13 +376,2 @@ // Assertion & errors
 }
-function deprecated(fn, name, alter){
-  var shown, msg = name + ' is deprecated and will be removed in the future!';
-  if(alter)msg += ' Use ' + alter + DOT;
-  return function(){
-    if(!shown && global.console && console.warn){
-      shown = true;
-      console.warn(msg);
-    }
-    return fn.apply(this, arguments);
-  }
-}
 
@@ -431,5 +430,2 @@ // Property descriptors & Symbol
   Constructor[PROTOTYPE] = create(proto || IteratorPrototype, {next: descriptor(1, next)});
-  // 22.1.5.2.3 %ArrayIteratorPrototype%[@@toStringTag]
-  // 23.1.5.2.3 %MapIteratorPrototype%[@@toStringTag]
-  // 23.2.5.2.3 %SetIteratorPrototype%[@@toStringTag]
   setToStringTag(Constructor, NAME + ' Iterator');
@@ -448,4 +444,9 @@ }
     setIterator(proto, iter);
-    // FF fix
-    if(HAS_FF_ITER)setIterator(getPrototypeOf(iter.call(new Constructor)), returnThis);
+    if(iter !== value){
+      var iterProto = getPrototypeOf(iter.call(new Constructor));
+      // Set @@toStringTag to native iterators
+      setToStringTag(iterProto, NAME + ' Iterator', true);
+      // FF fix
+      HAS_FF_ITER && setIterator(iterProto, returnThis);
+    }
   }
@@ -748,17 +749,5 @@ // Plug for library
     // 21.1.3.3 String.prototype.codePointAt(pos)
-    codePointAt: function(pos){
-      var s = String(this)
-        , i = toInteger(pos)
-        , l = s.length
-        , a, b;
-      if(i < 0 || i >= l)return;
-      a = s.charCodeAt(i);
-      if(a < 0xd800 || a > 0xdbff || i + 1 === l)return a;
-      b = s.charCodeAt(i + 1);
-      return b < 0xdc00 || b > 0xdfff ? a : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
-    },
+    codePointAt: createPointAt(false),
     // String.prototype.includes(searchString, position = 0)
     includes: includes,
-    // Deprecated name of String#includes
-    contains: deprecated(includes, STRING+SHARP+CONTAINS, STRING+SHARP+INCLUDES),
     // 21.1.3.7 String.prototype.endsWith(searchString [, endPosition])
@@ -790,3 +779,3 @@ endsWith: function(searchString, endPosition /* = @length */){
     from: function(arrayLike, mapfn /* -> it */, that /* = undefind */){
-      var O       = ES5Object(arrayLike)
+      var O       = Object(arrayLike)
         , result  = new (generic(this, Array))
@@ -797,5 +786,4 @@ , mapping = mapfn !== undefined
         , length;
-      if(isIterable(O))for(var iter = getIterator(O), step; !(step = iter.next()).done;){
+      if(isIterable(O))for(var iter = getIterator(O), step; !(step = iter.next()).done; index++){
         result[index] = mapping ? f(step.value, index) : step.value;
-        index++;
       } else for(length = toLength(O.length); length > index; index++){
@@ -1273,2 +1261,56 @@ result[index] = mapping ? f(O[index], index) : O[index];
 /******************************************************************************
+ * Module : es7                                                               *
+ ******************************************************************************/
+
+!function(){
+  $define(PROTO, ARRAY, {
+    // https://github.com/domenic/Array.prototype.includes
+    includes: createArrayContains(true)
+  });
+  $define(PROTO, STRING, {
+    // https://github.com/mathiasbynens/String.prototype.at
+    at: createPointAt(true)
+  });
+  $define(STATIC, OBJECT, {
+    // https://github.com/rwaldron/tc39-notes/blob/master/es6/2014-04/apr-9.md#51-objectentries-objectvalues
+    values: createObjectToArray(false),
+    entries: createObjectToArray(true)
+  });
+  $define(STATIC, REGEXP, {
+    // https://gist.github.com/kangax/9698100
+    escape: createReplacer(/([\\\-[\]{}()*+?.,^$|])/g, '\\$1', true)
+  });
+}();
+
+/******************************************************************************
+ * Module : es7_refs                                                          *
+ ******************************************************************************/
+
+// https://github.com/zenparsing/es-abstract-refs
+!function(REFERENCE){
+  REFERENCE_GET = Symbol(SYMBOL+DOT+REFERENCE+'Get');
+  var REFERENCE_SET = Symbol(SYMBOL+DOT+REFERENCE+SET)
+    , REFERENCE_DELETE = Symbol(SYMBOL+DOT+REFERENCE+'Delete');
+  
+  $define(STATIC, SYMBOL, {
+    referenceGet: REFERENCE_GET,
+    referenceSet: REFERENCE_SET,
+    referenceDelete: REFERENCE_DELETE
+  });
+  
+  FunctionProto[REFERENCE_GET] || hidden(FunctionProto, REFERENCE_GET, returnThis);
+  
+  function setMapMethods(Constructor){
+    if(Constructor){
+      var MapProto = Constructor[PROTOTYPE];
+      MapProto[REFERENCE_GET] || hidden(MapProto, REFERENCE_GET, MapProto.get);
+      MapProto[REFERENCE_SET] || hidden(MapProto, REFERENCE_SET, MapProto.set);
+      MapProto[REFERENCE_DELETE] || hidden(MapProto, REFERENCE_DELETE, MapProto['delete']);
+    }
+  }
+  setMapMethods(Map);
+  setMapMethods(WeakMap);
+}('reference');
+
+/******************************************************************************
  * Module : es6_iterators                                                     *
@@ -1281,5 +1323,6 @@ ******************************************************************************/
     // Safari define byggy iterators w/o `next`
-    , buggy = 'keys' in ArrayProto && !('next' in [].keys());
+    , buggy = 'keys' in ArrayProto && !('next' in [].keys())
+    , at = createPointAt(true);
   
-  function defineStdIterators(Base, NAME, DEFAULT, Constructor, next){
+  function defineStdIterators(Base, NAME, Constructor, next, DEFAULT){
     function createIter(kind){
@@ -1290,4 +1333,8 @@ return function(){
     }
+    // 21.1.5.2.2 %StringIteratorPrototype%[@@toStringTag]
+    // 22.1.5.2.3 %ArrayIteratorPrototype%[@@toStringTag]
+    // 23.1.5.2.3 %MapIteratorPrototype%[@@toStringTag]
+    // 23.2.5.2.3 %SetIteratorPrototype%[@@toStringTag]
     createIterator(Constructor, NAME, next);
-    $define(PROTO + FORCED * buggy, NAME, {
+    DEFAULT && $define(PROTO + FORCED * buggy, NAME, {
       // 22.1.3.4 Array.prototype.entries()
@@ -1306,2 +1353,3 @@ // 23.1.3.4 Map.prototype.entries()
     });
+    // 21.1.3.27 String.prototype[@@iterator]()
     // 22.1.3.30 Array.prototype[@@iterator]()
@@ -1313,4 +1361,19 @@ // 23.1.3.12 Map.prototype[@@iterator]()
   
+  // 21.1.5.1 CreateStringIterator Abstract Operation
+  defineStdIterators(String, STRING, function(iterated){
+    set(this, ITER, {o: String(iterated), i: 0});
+  // 21.1.5.2.1 %StringIteratorPrototype%.next()
+  }, function(){
+    var iter     = this[ITER]
+      , iterated = iter.o
+      , index    = iter.i
+      , point;
+    if(index >= iterated.length)return iterResult(1);
+    point = at.call(iterated, index);
+    iter.i += point.length;
+    return iterResult(0, point);
+  });
+  
   // 22.1.5.1 CreateArrayIterator Abstract Operation
-  defineStdIterators(Array, ARRAY, VALUE, function(iterated, kind){
+  defineStdIterators(Array, ARRAY, function(iterated, kind){
     set(this, ITER, {o: ES5Object(iterated), i: 0, k: kind});
@@ -1329,11 +1392,9 @@ // 22.1.5.2.1 %ArrayIteratorPrototype%.next()
     return iterResult(0, value);
-  });
+  }, VALUE);
   
-  // 21.1.3.27 String.prototype[@@iterator]() - SHAM, TODO
-  defineIterator(String, STRING, Iterators[ARRAY]);
   // argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
   Iterators[ARGUMENTS] = Iterators[ARRAY];
-  
+    
   // 23.1.5.1 CreateMapIterator Abstract Operation
-  defineStdIterators(Map, MAP, KEY+VALUE, function(iterated, kind){
+  defineStdIterators(Map, MAP, function(iterated, kind){
     var keys;
@@ -1359,6 +1420,6 @@ if(Map[SHIM])keys = getValues(iterated[COLLECTION_KEYS]);
     return iterResult(0, value);
-  });
+  }, KEY+VALUE);
   
   // 23.2.5.1 CreateSetIterator Abstract Operation
-  defineStdIterators(Set, SET, VALUE, function(iterated, kind){
+  defineStdIterators(Set, SET, function(iterated, kind){
     var keys;
@@ -1378,3 +1439,3 @@ if(Set[SHIM])keys = getValues(iterated[COLLECTION_KEYS]);
     return iterResult(0, iter.k == KEY+VALUE ? [key, key] : key);
-  });
+  }, VALUE);
 }();
@@ -1381,0 +1442,0 @@

src/array.js

 $define(PROTO + FORCED, ARRAY, {
-  // ~ ES7 : https://github.com/domenic/Array.prototype.includes
-  includes: createArrayContains(true),
-  // Deprecated name of Array#includes
-  contains: deprecated(createArrayContains(true), ARRAY+SHARP+CONTAINS, ARRAY+SHARP+INCLUDES),
   turn: turn
 });

src/common.js

@@ -24,4 +24,2 @@ var global          = returnThis()
   , FOR_EACH        = 'forEach'
-  , CONTAINS        = 'contains'
-  , INCLUDES        = 'includes'
   , PROCESS         = 'process'
@@ -60,4 +58,3 @@ , CREATE_ELEMENT  = 'createElement'
   , path            = framework ? global : core
-  , DOT             = '.'
-  , SHARP           = '#';
+  , DOT             = '.';
 
@@ -95,3 +92,4 @@ // http://jsperf.com/core-js-isobject
 var apply = FunctionProto.apply
-  , call  = FunctionProto.call;
+  , call  = FunctionProto.call
+  , REFERENCE_GET;
 // Placeholder
@@ -175,4 +173,3 @@ core._ = path._ = framework ? path._ || {} : {};
   // Dummy, fix for not array-like ES3 string in es5 module
-  , ES5Object        = Object
-  , Dict;
+  , ES5Object        = Object;
 // 19.1.2.1 Object.assign(target, source, ...)
@@ -335,2 +332,15 @@ var assign = Object.assign || function(target, source){
 }
+function createPointAt(toString){
+  return function(pos){
+    var s = String(this)
+      , i = toInteger(pos)
+      , l = s.length
+      , a, b;
+    if(i < 0 || i >= l)return toString ? '' : undefined;
+    a = s.charCodeAt(i);
+    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
+      ? toString ? s.charAt(i) : a
+      : toString ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
+  }
+}
 
@@ -353,13 +363,2 @@ // Assertion & errors
 }
-function deprecated(fn, name, alter){
-  var shown, msg = name + ' is deprecated and will be removed in the future!';
-  if(alter)msg += ' Use ' + alter + DOT;
-  return function(){
-    if(!shown && global.console && console.warn){
-      shown = true;
-      console.warn(msg);
-    }
-    return fn.apply(this, arguments);
-  }
-}
 
@@ -418,5 +417,2 @@ // Property descriptors & Symbol
   Constructor[PROTOTYPE] = create(proto || IteratorPrototype, {next: descriptor(1, next)});
-  // 22.1.5.2.3 %ArrayIteratorPrototype%[@@toStringTag]
-  // 23.1.5.2.3 %MapIteratorPrototype%[@@toStringTag]
-  // 23.2.5.2.3 %SetIteratorPrototype%[@@toStringTag]
   setToStringTag(Constructor, NAME + ' Iterator');
@@ -435,4 +431,9 @@ }
     setIterator(proto, iter);
-    // FF fix
-    if(HAS_FF_ITER)setIterator(getPrototypeOf(iter.call(new Constructor)), returnThis);
+    if(iter !== value){
+      var iterProto = getPrototypeOf(iter.call(new Constructor));
+      // Set @@toStringTag to native iterators
+      setToStringTag(iterProto, NAME + ' Iterator', true);
+      // FF fix
+      HAS_FF_ITER && setIterator(iterProto, returnThis);
+    }
   }
@@ -439,0 +440,0 @@ // Plug for library

src/dict.js

 !function(DICT){
-  Dict = function(iterable){
+  function Dict(iterable){
     var dict = create(null);
@@ -103,3 +103,4 @@ if(iterable != undefined){
   }
-  assign(Dict, {
+  
+  var dictMethods = {
     keys:    createDictIter(KEY),
@@ -119,4 +120,3 @@ values:  createDictIter(VALUE),
     keyOf:   keyOf,
-    includes: includes,
-    contains: deprecated(includes, DICT+DOT+CONTAINS, DICT+DOT+INCLUDES),
+    includes:includes,
     // Has / get / set own property
@@ -131,10 +131,15 @@ has: has,
     }
-  });
-  $define(STATIC, OBJECT, {
-    // ~ ES7 : http://esdiscuss.org/topic/april-8-2014-meeting-notes#content-1
-    values: createObjectToArray(false),
-    // ~ ES7 : http://esdiscuss.org/topic/april-8-2014-meeting-notes#content-1
-    entries: createObjectToArray(true)
-  });
-  $define(GLOBAL + FORCED, {Dict: Dict});
+  };
+  
+  if(REFERENCE_GET)for(var key in dictMethods)!function(fn){
+    function method(){
+      for(var args = [this], i = 0; i < arguments.length;)args.push(arguments[i++]);
+      return invoke(fn, args);
+    }
+    fn[REFERENCE_GET] = function(){
+      return method;
+    }
+  }(dictMethods[key]);
+  
+  $define(GLOBAL + FORCED, {Dict: assign(Dict, dictMethods)});
 }('Dict');

src/es6_iterators.js

@@ -5,5 +5,6 @@ // ECMAScript 6 iterators shim
     // Safari define byggy iterators w/o `next`
-    , buggy = 'keys' in ArrayProto && !('next' in [].keys());
+    , buggy = 'keys' in ArrayProto && !('next' in [].keys())
+    , at = createPointAt(true);
   
-  function defineStdIterators(Base, NAME, DEFAULT, Constructor, next){
+  function defineStdIterators(Base, NAME, Constructor, next, DEFAULT){
     function createIter(kind){
@@ -14,4 +15,8 @@ return function(){
     }
+    // 21.1.5.2.2 %StringIteratorPrototype%[@@toStringTag]
+    // 22.1.5.2.3 %ArrayIteratorPrototype%[@@toStringTag]
+    // 23.1.5.2.3 %MapIteratorPrototype%[@@toStringTag]
+    // 23.2.5.2.3 %SetIteratorPrototype%[@@toStringTag]
     createIterator(Constructor, NAME, next);
-    $define(PROTO + FORCED * buggy, NAME, {
+    DEFAULT && $define(PROTO + FORCED * buggy, NAME, {
       // 22.1.3.4 Array.prototype.entries()
@@ -30,2 +35,3 @@ // 23.1.3.4 Map.prototype.entries()
     });
+    // 21.1.3.27 String.prototype[@@iterator]()
     // 22.1.3.30 Array.prototype[@@iterator]()
@@ -37,4 +43,19 @@ // 23.1.3.12 Map.prototype[@@iterator]()
   
+  // 21.1.5.1 CreateStringIterator Abstract Operation
+  defineStdIterators(String, STRING, function(iterated){
+    set(this, ITER, {o: String(iterated), i: 0});
+  // 21.1.5.2.1 %StringIteratorPrototype%.next()
+  }, function(){
+    var iter     = this[ITER]
+      , iterated = iter.o
+      , index    = iter.i
+      , point;
+    if(index >= iterated.length)return iterResult(1);
+    point = at.call(iterated, index);
+    iter.i += point.length;
+    return iterResult(0, point);
+  });
+  
   // 22.1.5.1 CreateArrayIterator Abstract Operation
-  defineStdIterators(Array, ARRAY, VALUE, function(iterated, kind){
+  defineStdIterators(Array, ARRAY, function(iterated, kind){
     set(this, ITER, {o: ES5Object(iterated), i: 0, k: kind});
@@ -53,11 +74,9 @@ // 22.1.5.2.1 %ArrayIteratorPrototype%.next()
     return iterResult(0, value);
-  });
+  }, VALUE);
   
-  // 21.1.3.27 String.prototype[@@iterator]() - SHAM, TODO
-  defineIterator(String, STRING, Iterators[ARRAY]);
   // argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
   Iterators[ARGUMENTS] = Iterators[ARRAY];
-  
+    
   // 23.1.5.1 CreateMapIterator Abstract Operation
-  defineStdIterators(Map, MAP, KEY+VALUE, function(iterated, kind){
+  defineStdIterators(Map, MAP, function(iterated, kind){
     var keys;
@@ -83,6 +102,6 @@ if(Map[SHIM])keys = getValues(iterated[COLLECTION_KEYS]);
     return iterResult(0, value);
-  });
+  }, KEY+VALUE);
   
   // 23.2.5.1 CreateSetIterator Abstract Operation
-  defineStdIterators(Set, SET, VALUE, function(iterated, kind){
+  defineStdIterators(Set, SET, function(iterated, kind){
     var keys;
@@ -102,3 +121,3 @@ if(Set[SHIM])keys = getValues(iterated[COLLECTION_KEYS]);
     return iterResult(0, iter.k == KEY+VALUE ? [key, key] : key);
-  });
+  }, VALUE);
 }();

src/es6.js

@@ -161,17 +161,5 @@ // ECMAScript 6 shim
     // 21.1.3.3 String.prototype.codePointAt(pos)
-    codePointAt: function(pos){
-      var s = String(this)
-        , i = toInteger(pos)
-        , l = s.length
-        , a, b;
-      if(i < 0 || i >= l)return;
-      a = s.charCodeAt(i);
-      if(a < 0xd800 || a > 0xdbff || i + 1 === l)return a;
-      b = s.charCodeAt(i + 1);
-      return b < 0xdc00 || b > 0xdfff ? a : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
-    },
+    codePointAt: createPointAt(false),
     // String.prototype.includes(searchString, position = 0)
     includes: includes,
-    // Deprecated name of String#includes
-    contains: deprecated(includes, STRING+SHARP+CONTAINS, STRING+SHARP+INCLUDES),
     // 21.1.3.7 String.prototype.endsWith(searchString [, endPosition])
@@ -203,3 +191,3 @@ endsWith: function(searchString, endPosition /* = @length */){
     from: function(arrayLike, mapfn /* -> it */, that /* = undefind */){
-      var O       = ES5Object(arrayLike)
+      var O       = Object(arrayLike)
         , result  = new (generic(this, Array))
@@ -210,5 +198,4 @@ , mapping = mapfn !== undefined
         , length;
-      if(isIterable(O))for(var iter = getIterator(O), step; !(step = iter.next()).done;){
+      if(isIterable(O))for(var iter = getIterator(O), step; !(step = iter.next()).done; index++){
         result[index] = mapping ? f(step.value, index) : step.value;
-        index++;
       } else for(length = toLength(O.length); length > index; index++){
@@ -215,0 +202,0 @@ result[index] = mapping ? f(O[index], index) : O[index];

No alert changes

Improved metrics

Total package byte prevSize

956296

increased by4.83%

Number of package files

70

increased by1.45%

Lines of code

18717

increased by2.87%

Number of lines in readme file

1189

increased by50.7%

No dependency changes