Lodin/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8"/>
	<title>Loop with closure #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 () {
		var baseArr = new Array(10000)
		  .map(function(_, index) {return 'foo-' + index;})

		var arr1 = new Array(10000);
		var arr2 = new Array(10000);
		var arr3 = new Array(10000);
	};


	suite.add("var loop = function(i) {", function () {
		var loop = function(i) {
		    arr1[i] = function () {
		        console.log(i);
		    }
		}

		for (var i = 0; i < baseArr.length; i++) {
		    loop(i)
		}
	});

	suite.add("baseArr.forEach(function(el, index) {", function () {
		baseArr.forEach(function(el, index) {
		    arr3[index] = function () {
		        console.log(index);
		    }
		})
	});

	suite.add("var loop = function(i) {", function () {
		var loop = function(i) {
		    arr2[i] = function () {
		        console.log(i);
		    }
		}

		for (var i = 0, len = baseArr.length; i < len; i++) {
		    loop(i)
		}
	});

	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 with closure #jsbench #jsperf");
	console.log(new Array(30).join("-"));
	suite.run();
});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Loop with closure #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 () {
	var baseArr = new Array(10000)
	.map(function(_, index) {return 'foo-' + index;})

	var arr1 = new Array(10000);
	var arr2 = new Array(10000);
	var arr3 = new Array(10000);
	};


	suite.add("var loop = function(i) {", function () {
	var loop = function(i) {
	arr1[i] = function () {
	console.log(i);
	}
	}

	for (var i = 0; i < baseArr.length; i++) {
	loop(i)
	}
	});

	suite.add("baseArr.forEach(function(el, index) {", function () {
	baseArr.forEach(function(el, index) {
	arr3[index] = function () {
	console.log(index);
	}
	})
	});

	suite.add("var loop = function(i) {", function () {
	var loop = function(i) {
	arr2[i] = function () {
	console.log(i);
	}
	}

	for (var i = 0, len = baseArr.length; i < len; i++) {
	loop(i)
	}
	});

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