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2d441493a4
PR-URL: https://github.com/nodejs/io.js/pull/2286 Reviewed-By: Roman Reiss <me@silverwind.io>
23 lines
595 B
JavaScript
23 lines
595 B
JavaScript
// Thanks: http://www.2ality.com/2014/01/efficient-string-repeat.html
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'use strict';
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var value = require('../../../object/valid-value')
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, toInteger = require('../../../number/to-integer');
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module.exports = function (count) {
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var str = String(value(this)), result;
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count = toInteger(count);
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if (count < 0) throw new RangeError("Count must be >= 0");
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if (!isFinite(count)) throw new RangeError("Count must be < ∞");
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result = '';
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if (!count) return result;
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while (true) {
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if (count & 1) result += str;
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count >>>= 1;
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if (count <= 0) break;
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str += str;
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}
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return result;
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};
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