文件操作 - array-slice-simple.js
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文件: /usr/share/nodejs/core-js/internals/array-slice-simple.js
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var toAbsoluteIndex = require('../internals/to-absolute-index'); var lengthOfArrayLike = require('../internals/length-of-array-like'); var createProperty = require('../internals/create-property'); var $Array = Array; var max = Math.max; module.exports = function (O, start, end) { var length = lengthOfArrayLike(O); var k = toAbsoluteIndex(start, length); var fin = toAbsoluteIndex(end === undefined ? length : end, length); var result = $Array(max(fin - k, 0)); for (var n = 0; k < fin; k++, n++) createProperty(result, n, O[k]); result.length = n; return result; };
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