source: imaps-frontend/node_modules/es-abstract/2018/IsStringPrefix.js@ d565449

'use strict';

var $TypeError = require('es-errors/type');

var isPrefixOf = require('../helpers/isPrefixOf');

// var callBound = require('call-bind/callBound');

// var $charAt = callBound('String.prototype.charAt');

// https://262.ecma-international.org/9.0/#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 isPrefixOf(p, q);
        /*
        if (p === q || p === '') {
                return true;
        }

        var pLength = p.length;
        var qLength = q.length;
        if (pLength >= qLength) {
                return false;
        }

        // assert: pLength < qLength

        for (var i = 0; i < pLength; i += 1) {
                if ($charAt(p, i) !== $charAt(q, i)) {
                        return false;
                }
        }
        return true;
        */
};