26 lines
633 B
JavaScript
26 lines
633 B
JavaScript
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'use strict';
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var ES2016 = require('./es2016');
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var assign = require('./helpers/assign');
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var ES2017 = assign(assign({}, ES2016), {
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ToIndex: function ToIndex(value) {
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if (typeof value === 'undefined') {
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return 0;
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}
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var integerIndex = this.ToInteger(value);
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if (integerIndex < 0) {
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throw new RangeError('index must be >= 0');
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}
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var index = this.ToLength(integerIndex);
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if (!this.SameValueZero(integerIndex, index)) {
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throw new RangeError('index must be >= 0 and < 2 ** 53 - 1');
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}
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return index;
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}
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});
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delete ES2017.EnumerableOwnNames; // replaced with EnumerableOwnProperties
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module.exports = ES2017;
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