internet-programming/lab3/node_modules/es-abstract/2022/IsStringPrefix.js

23 lines
539 B
JavaScript

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