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| | | 'use strict'; |
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| | | var global = require('../internals/global'); |
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| | | var isArray = require('../internals/is-array'); |
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| | | var lengthOfArrayLike = require('../internals/length-of-array-like'); |
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| | | var bind = require('../internals/function-bind-context'); |
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| | | |
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| | | var TypeError = global.TypeError; |
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| | | |
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| | | // `FlattenIntoArray` abstract operation |
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| | | // https://tc39.github.io/proposal-flatMap/#sec-FlattenIntoArray |
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| | | var flattenIntoArray = function (target, original, source, sourceLen, start, depth, mapper, thisArg) { |
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| | | var targetIndex = start; |
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| | | var sourceIndex = 0; |
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| | | var mapFn = mapper ? bind(mapper, thisArg, 3) : false; |
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| | | var mapFn = mapper ? bind(mapper, thisArg) : false; |
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| | | var element, elementLen; |
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| | | |
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| | | while (sourceIndex < sourceLen) { |
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