array-for-each.js 664 B

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  1. 'use strict';
  2. var $forEach = require('../internals/array-iteration').forEach;
  3. var arrayMethodIsStrict = require('../internals/array-method-is-strict');
  4. var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');
  5. var STRICT_METHOD = arrayMethodIsStrict('forEach');
  6. var USES_TO_LENGTH = arrayMethodUsesToLength('forEach');
  7. // `Array.prototype.forEach` method implementation
  8. // https://tc39.github.io/ecma262/#sec-array.prototype.foreach
  9. module.exports = (!STRICT_METHOD || !USES_TO_LENGTH) ? function forEach(callbackfn /* , thisArg */) {
  10. return $forEach(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  11. } : [].forEach;