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'use strict';
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var GetIntrinsic = require('../GetIntrinsic');
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var $TypeError = GetIntrinsic('%TypeError%');
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var isPrefixOf = require('../helpers/isPrefixOf');
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// var callBound = require('../helpers/callBound');
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// var $charAt = callBound('String.prototype.charAt');
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var Type = require('./Type');
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// https://www.ecma-international.org/ecma-262/9.0/#sec-isstringprefix
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module.exports = function IsStringPrefix(p, q) {
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	if (Type(p) !== 'String') {
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		throw new $TypeError('Assertion failed: "p" must be a String');
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	}
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	if (Type(q) !== 'String') {
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		throw new $TypeError('Assertion failed: "q" must be a String');
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	}
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	return isPrefixOf(p, q);
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	/*
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	if (p === q || p === '') {
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		return true;
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	}
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	var pLength = p.length;
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	var qLength = q.length;
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	if (pLength >= qLength) {
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		return false;
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	}
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	// assert: pLength < qLength
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	for (var i = 0; i < pLength; i += 1) {
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		if ($charAt(p, i) !== $charAt(q, i)) {
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			return false;
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		}
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	}
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	return true;
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	*/
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};
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