RomanPerekhrest/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8"/>
	<title>test_cycle #jsbench #jsperf</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script>
	<script src="./suite.js"></script>
</head>
<body>
	<h1>Open the console to view the results</h1>
	<h2><code>cmd + alt + j</code> or <code>ctrl + alt + j</code></h2>
</body>
</html>

## suite.js
"use strict";

(function (factory) {
	if (typeof Benchmark !== "undefined") {
		factory(Benchmark);
	} else {
		factory(require("benchmark"));
	}
})(function (Benchmark) {
	var suite = new Benchmark.Suite;

	Benchmark.prototype.setup = function () {
		function cycle1(num) {
		  	const str1 = 'A', str2 = 'B';
		  	let res = [];

		  	for(let i = 1; res.length < num; i++ ) {
		  		res.push(i % 2 ? str1 : str2);
		  	}
		    res = res.join('')
		    console.log(res)
		  }

		function cycle2(num) {
			const str1 = 'A', str2 = 'B';
			let res = '';

			for (let i=1; i <= num; i++) {
				res += (i % 2 ? str1 : str2);
			}
		    console.log(res)
		}

		 function alternateLetters(num) {
		      const a = 'A', b = 'B';
		      const result = [...Array(num)].map((_, i) => i % 2 ? b : a);
		      console.log(result.join(''))
		    }
	};


	suite.add("cycle1(5)", function () {
		cycle1(5)
	});

	suite.add("cycle2(5)", function () {
		cycle2(5)
	});

	suite.add("alternateLetters(5)", function () {
		alternateLetters(5)
	});

	suite.on("cycle", function (evt) {
		console.log(" - " + evt.target);
	});

	suite.on("complete", function (evt) {
		console.log(new Array(30).join("-"));

		var results = evt.currentTarget.sort(function (a, b) {
			return b.hz - a.hz;
		});

		results.forEach(function (item) {
			console.log((idx + 1) + ". " + item);
		});
	});

	console.log("test_cycle #jsbench #jsperf");
	console.log(new Array(30).join("-"));
	suite.run();
});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>test_cycle #jsbench #jsperf</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script>
	<script src="./suite.js"></script>
	</head>
	<body>
	<h1>Open the console to view the results</h1>
	<h2><code>cmd + alt + j</code> or <code>ctrl + alt + j</code></h2>
	</body>
	</html>
	"use strict";

	(function (factory) {
	if (typeof Benchmark !== "undefined") {
	factory(Benchmark);
	} else {
	factory(require("benchmark"));
	}
	})(function (Benchmark) {
	var suite = new Benchmark.Suite;

	Benchmark.prototype.setup = function () {
	function cycle1(num) {
	const str1 = 'A', str2 = 'B';
	let res = [];

	for(let i = 1; res.length < num; i++ ) {
	res.push(i % 2 ? str1 : str2);
	}
	res = res.join('')
	console.log(res)
	}

	function cycle2(num) {
	const str1 = 'A', str2 = 'B';
	let res = '';

	for (let i=1; i <= num; i++) {
	res += (i % 2 ? str1 : str2);
	}
	console.log(res)
	}

	function alternateLetters(num) {
	const a = 'A', b = 'B';
	const result = [...Array(num)].map((_, i) => i % 2 ? b : a);
	console.log(result.join(''))
	}
	};


	suite.add("cycle1(5)", function () {
	cycle1(5)
	});

	suite.add("cycle2(5)", function () {
	cycle2(5)
	});

	suite.add("alternateLetters(5)", function () {
	alternateLetters(5)
	});

	suite.on("cycle", function (evt) {
	console.log(" - " + evt.target);
	});

	suite.on("complete", function (evt) {
	console.log(new Array(30).join("-"));

	var results = evt.currentTarget.sort(function (a, b) {
	return b.hz - a.hz;
	});

	results.forEach(function (item) {
	console.log((idx + 1) + ". " + item);
	});
	});

	console.log("test_cycle #jsbench #jsperf");
	console.log(new Array(30).join("-"));
	suite.run();
	});