zhirzh/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8"/>
	<title>Untitled benchmark</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 random() {
		    return Math.floor(Math.random() * 10)
		}
		const xs = Array.from({ length: 100_000 }, () => random())

		function isEven(x) {
		    return x % 2 === 0
		}

		function times2(x) {
		    return 2 * x
		}
	};


	suite.add("1", function () {
		//1
		const ys=[]
		for(let i=xs.length-1;i>-1;i--){
		    const x=xs[i]
		    if(!isEven(x)) {
		        continue
		    }
		    ys.push(times2(x))
		}
	});

	suite.add("2", function () {
		//2
		const ys=xs.filter(isEven).map(times2)
	});

	suite.add("3", function () {
		//3
		const ys=xs.reduce((acc,x)=>{
		    if(isEven(x)){
		        acc.push(times2(x))
		    }
		    return acc
		},[])
	});

	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("Untitled benchmark");
	console.log(new Array(30).join("-"));
	suite.run();
});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Untitled benchmark</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 random() {
	return Math.floor(Math.random() * 10)
	}
	const xs = Array.from({ length: 100_000 }, () => random())

	function isEven(x) {
	return x % 2 === 0
	}

	function times2(x) {
	return 2 * x
	}
	};


	suite.add("1", function () {
	//1
	const ys=[]
	for(let i=xs.length-1;i>-1;i--){
	const x=xs[i]
	if(!isEven(x)) {
	continue
	}
	ys.push(times2(x))
	}
	});

	suite.add("2", function () {
	//2
	const ys=xs.filter(isEven).map(times2)
	});

	suite.add("3", function () {
	//3
	const ys=xs.reduce((acc,x)=>{
	if(isEven(x)){
	acc.push(times2(x))
	}
	return acc
	},[])
	});

	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("Untitled benchmark");
	console.log(new Array(30).join("-"));
	suite.run();
	});