RubaXa/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8"/>
	<title>Array#forEach</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 () {
		var source = Array.apply(null, new Array(1e2)).map(function () {
		    return Math.random();
		});

		function simpleForEach(array, callback, thisArg) {
		    for (var i = 0, length = array.length; i < length; i++) {
		        callback.call(thisArg, array[i], i, array);
		    }
		}

		function optimizedForEach(array, callback, thisArg) {
		    var argsLength = callback.length;
		    var hasThisArg = arguments.length > 2;

		    for (var i = 0, length = array.length; i < length; i++) {
		        if (hasThisArg) {
		            callback.call(thisArg, array[i], i, array);
		        } else if (argsLength === 1) {
		            callback(array[i]);
		        } else if (argsLength === 2) {
		            callback(array[i], i);
		        } else {
		            callback(array[i], i, array);
		        }
		    }
		}
	};


	suite.add("Native", function () {
		/** Native **/
		var sum = 0;
		source.forEach(function (val) {
		    sum += val;
		});
	});

	suite.add("Simple", function () {
		/** Simple **/
		var sum = 0;
		simpleForEach(source, function (val) {
		    sum += val;
		});
	});

	suite.add("Optimized", function () {
		/** Optimized **/
		var sum = 0;
		optimizedForEach(source, function (val) {
		    sum += val;
		});
	});

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

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

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

	console.log("Array#forEach");
	console.log(new Array(30).join("-"));
	suite.run();
});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Array#forEach</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 () {
	var source = Array.apply(null, new Array(1e2)).map(function () {
	return Math.random();
	});

	function simpleForEach(array, callback, thisArg) {
	for (var i = 0, length = array.length; i < length; i++) {
	callback.call(thisArg, array[i], i, array);
	}
	}

	function optimizedForEach(array, callback, thisArg) {
	var argsLength = callback.length;
	var hasThisArg = arguments.length > 2;

	for (var i = 0, length = array.length; i < length; i++) {
	if (hasThisArg) {
	callback.call(thisArg, array[i], i, array);
	} else if (argsLength === 1) {
	callback(array[i]);
	} else if (argsLength === 2) {
	callback(array[i], i);
	} else {
	callback(array[i], i, array);
	}
	}
	}
	};


	suite.add("Native", function () {
	/ Native /
	var sum = 0;
	source.forEach(function (val) {
	sum += val;
	});
	});

	suite.add("Simple", function () {
	/ Simple /
	var sum = 0;
	simpleForEach(source, function (val) {
	sum += val;
	});
	});

	suite.add("Optimized", function () {
	/ Optimized /
	var sum = 0;
	optimizedForEach(source, function (val) {
	sum += val;
	});
	});

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

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

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

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