itsbth/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8"/>
	<title>Loop-the-loop #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 () {
		const data = new Array(4096 * 16).fill(undefined).map(() => Math.random());
		let out;
	};

	Benchmark.prototype.teardown = function () {
		console.log(out.reduce((a, b) => a + b, 0));
	};

	suite.add("simple loop + conditional", function () {
		// simple loop + conditional

		out = [];

		for (const n of data) {
		    if (n < 0.5) {
		        out.push(n * 2);
		    }
		}
	});

	suite.add("filter + map", function () {
		// filter + map

		out = data.filter(n => n < 0.5).map(n => n * 2);
	});

	suite.add("flatMap", function () {
		// flatMap

		out = data.flatMap(n => n < 0.5 ? [n * 2] : []);
	});

	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("Loop-the-loop #jsbench #jsperf");
	console.log(new Array(30).join("-"));
	suite.run();
});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Loop-the-loop #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 () {
	const data = new Array(4096 * 16).fill(undefined).map(() => Math.random());
	let out;
	};

	Benchmark.prototype.teardown = function () {
	console.log(out.reduce((a, b) => a + b, 0));
	};

	suite.add("simple loop + conditional", function () {
	// simple loop + conditional

	out = [];

	for (const n of data) {
	if (n < 0.5) {
	out.push(n * 2);
	}
	}
	});

	suite.add("filter + map", function () {
	// filter + map

	out = data.filter(n => n < 0.5).map(n => n * 2);
	});

	suite.add("flatMap", function () {
	// flatMap

	out = data.flatMap(n => n < 0.5 ? [n * 2] : []);
	});

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