'use strict'; | |
var $TypeError = require('es-errors/type'); | |
var StringIndexOf = require('./StringIndexOf'); | |
// https://262.ecma-international.org/13.0/#sec-isstringprefix | |
module.exports = function IsStringPrefix(p, q) { | |
if (typeof p !== 'string') { | |
throw new $TypeError('Assertion failed: "p" must be a String'); | |
} | |
if (typeof q !== 'string') { | |
throw new $TypeError('Assertion failed: "q" must be a String'); | |
} | |
return StringIndexOf(q, p, 0) === 0; | |
}; |