| 1 | /*!
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| 2 | * repeat-string <https://github.com/jonschlinkert/repeat-string>
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| 3 | *
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| 4 | * Copyright (c) 2014-2015 Jon Schlinkert, contributors.
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| 5 | * Licensed under the MIT License
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| 6 | */
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| 7 |
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| 8 | ;
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| 9 |
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| 10 | module.exports = function repeat(str, num) {
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| 11 | if (typeof str !== 'string') {
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| 12 | throw new TypeError('repeat-string expects a string.');
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| 13 | }
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| 14 |
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| 15 | var res = '';
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| 16 |
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| 17 | while (num) {
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| 18 | if (num & 1) {
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| 19 | res += str;
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| 20 | }
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| 21 | num >>= 1;
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| 22 | str += str;
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| 23 | }
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| 24 |
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| 25 | return res;
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| 26 | };
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