Sha256: d2cbce03d5a8189a25f7c2ba94573c39ec24da6f267f4627c85706295460aa3a
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Versions: 17
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Contents
'use strict'; var isArray = require('../internals/is-array'); var toLength = require('../internals/to-length'); var bind = require('../internals/function-bind-context'); // `FlattenIntoArray` abstract operation // https://tc39.github.io/proposal-flatMap/#sec-FlattenIntoArray var flattenIntoArray = function (target, original, source, sourceLen, start, depth, mapper, thisArg) { var targetIndex = start; var sourceIndex = 0; var mapFn = mapper ? bind(mapper, thisArg, 3) : false; var element; while (sourceIndex < sourceLen) { if (sourceIndex in source) { element = mapFn ? mapFn(source[sourceIndex], sourceIndex, original) : source[sourceIndex]; if (depth > 0 && isArray(element)) { targetIndex = flattenIntoArray(target, original, element, toLength(element.length), targetIndex, depth - 1) - 1; } else { if (targetIndex >= 0x1FFFFFFFFFFFFF) throw TypeError('Exceed the acceptable array length'); target[targetIndex] = element; } targetIndex++; } sourceIndex++; } return targetIndex; }; module.exports = flattenIntoArray;
Version data entries
17 entries across 16 versions & 6 rubygems