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25 lines
874 B
25 lines
874 B
4 years ago
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'use strict';
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var $ = require('../internals/export');
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var $find = require('../internals/array-iteration').find;
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var addToUnscopables = require('../internals/add-to-unscopables');
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var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');
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var FIND = 'find';
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var SKIPS_HOLES = true;
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var USES_TO_LENGTH = arrayMethodUsesToLength(FIND);
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// Shouldn't skip holes
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if (FIND in []) Array(1)[FIND](function () { SKIPS_HOLES = false; });
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// `Array.prototype.find` method
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// https://tc39.github.io/ecma262/#sec-array.prototype.find
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$({ target: 'Array', proto: true, forced: SKIPS_HOLES || !USES_TO_LENGTH }, {
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find: function find(callbackfn /* , that = undefined */) {
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return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
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}
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});
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// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
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addToUnscopables(FIND);
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