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- 'use strict';
- var isFinite = require('is-finite');
- module.exports = function (str, n) {
- if (typeof str !== 'string') {
- throw new TypeError('Expected `input` to be a string');
- }
- if (n < 0 || !isFinite(n)) {
- throw new TypeError('Expected `count` to be a positive finite number');
- }
- var ret = '';
- do {
- if (n & 1) {
- ret += str;
- }
- str += str;
- } while ((n >>= 1));
- return ret;
- };
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