| 'use strict'; | |
| var $strSlice = require('../helpers/callBound')('String.prototype.slice'); | |
| module.exports = function isPrefixOf(prefix, string) { | |
| if (prefix === string) { | |
| return true; | |
| } | |
| if (prefix.length > string.length) { | |
| return false; | |
| } | |
| return $strSlice(string, 0, prefix.length) === prefix; | |
| }; |