11 lines
339 B
JavaScript
11 lines
339 B
JavaScript
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// https://tc39.github.io/ecma262/#sec-toindex
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var toInteger = require('./_to-integer');
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var toLength = require('./_to-length');
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module.exports = function (it) {
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if (it === undefined) return 0;
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var number = toInteger(it);
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var length = toLength(number);
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if (number !== length) throw RangeError('Wrong length!');
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return length;
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};
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