diff options
Diffstat (limited to 'node_modules/core-js/modules/es6.array.from.js')
| -rw-r--r-- | node_modules/core-js/modules/es6.array.from.js | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/node_modules/core-js/modules/es6.array.from.js b/node_modules/core-js/modules/es6.array.from.js index 69e5d4a62..4db38017f 100644 --- a/node_modules/core-js/modules/es6.array.from.js +++ b/node_modules/core-js/modules/es6.array.from.js @@ -1,33 +1,33 @@ 'use strict'; -var ctx = require('./_ctx') - , $export = require('./_export') - , toObject = require('./_to-object') - , call = require('./_iter-call') - , isArrayIter = require('./_is-array-iter') - , toLength = require('./_to-length') - , createProperty = require('./_create-property') - , getIterFn = require('./core.get-iterator-method'); +var ctx = require('./_ctx'); +var $export = require('./_export'); +var toObject = require('./_to-object'); +var call = require('./_iter-call'); +var isArrayIter = require('./_is-array-iter'); +var toLength = require('./_to-length'); +var createProperty = require('./_create-property'); +var getIterFn = require('./core.get-iterator-method'); -$export($export.S + $export.F * !require('./_iter-detect')(function(iter){ Array.from(iter); }), 'Array', { +$export($export.S + $export.F * !require('./_iter-detect')(function (iter) { Array.from(iter); }), 'Array', { // 22.1.2.1 Array.from(arrayLike, mapfn = undefined, thisArg = undefined) - from: function from(arrayLike/*, mapfn = undefined, thisArg = undefined*/){ - var O = toObject(arrayLike) - , C = typeof this == 'function' ? this : Array - , aLen = arguments.length - , mapfn = aLen > 1 ? arguments[1] : undefined - , mapping = mapfn !== undefined - , index = 0 - , iterFn = getIterFn(O) - , length, result, step, iterator; - if(mapping)mapfn = ctx(mapfn, aLen > 2 ? arguments[2] : undefined, 2); + from: function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) { + var O = toObject(arrayLike); + var C = typeof this == 'function' ? this : Array; + var aLen = arguments.length; + var mapfn = aLen > 1 ? arguments[1] : undefined; + var mapping = mapfn !== undefined; + var index = 0; + var iterFn = getIterFn(O); + var length, result, step, iterator; + if (mapping) mapfn = ctx(mapfn, aLen > 2 ? arguments[2] : undefined, 2); // if object isn't iterable or it's array with default iterator - use simple case - if(iterFn != undefined && !(C == Array && isArrayIter(iterFn))){ - for(iterator = iterFn.call(O), result = new C; !(step = iterator.next()).done; index++){ + if (iterFn != undefined && !(C == Array && isArrayIter(iterFn))) { + for (iterator = iterFn.call(O), result = new C(); !(step = iterator.next()).done; index++) { createProperty(result, index, mapping ? call(iterator, mapfn, [step.value, index], true) : step.value); } } else { length = toLength(O.length); - for(result = new C(length); length > index; index++){ + for (result = new C(length); length > index; index++) { createProperty(result, index, mapping ? mapfn(O[index], index) : O[index]); } } |