phillipskevin/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8"/>
	<title>Lazy Values</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 defineLazyValue(obj, prop, initializer, writable) {
		    Object.defineProperty(obj, prop, {
		        configurable: true,
		        get: function () {
		            Object.defineProperty(this, prop, {
		                value: undefined,
		                writable: true
		            });
		            var value = initializer.call(this, obj, prop);
		            Object.defineProperty(this, prop, {
		                value: value,
		                writable: !!writable
		            });
		            return value;
		        },
		        set: function (value) {
		            Object.defineProperty(this, prop, {
		                value: value,
		                writable: !!writable
		            });
		            return value;
		        }
		    });
		}

		var _id = 1;
		function getUniqueId() {
		    return _id++;
		}

		function MyObjWithNoID(){}

		function MyObj() {
		    this.id = getUniqueId();
		}

		function MyObjWithLazyId() {}
		defineLazyValue(MyObjWithLazyId.prototype, 'id', getUniqueId);
	};


	suite.add("new MyObjWithNoID();", function () {
		new MyObjWithNoID();
	});

	suite.add("new MyObj();", function () {
		new MyObj();
	});

	suite.add("new MyObjWithLazyId();", function () {
		new MyObjWithLazyId();
	});

	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("Lazy Values");
	console.log(new Array(30).join("-"));
	suite.run();
});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Lazy Values</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 defineLazyValue(obj, prop, initializer, writable) {
	Object.defineProperty(obj, prop, {
	configurable: true,
	get: function () {
	Object.defineProperty(this, prop, {
	value: undefined,
	writable: true
	});
	var value = initializer.call(this, obj, prop);
	Object.defineProperty(this, prop, {
	value: value,
	writable: !!writable
	});
	return value;
	},
	set: function (value) {
	Object.defineProperty(this, prop, {
	value: value,
	writable: !!writable
	});
	return value;
	}
	});
	}

	var _id = 1;
	function getUniqueId() {
	return _id++;
	}

	function MyObjWithNoID(){}

	function MyObj() {
	this.id = getUniqueId();
	}

	function MyObjWithLazyId() {}
	defineLazyValue(MyObjWithLazyId.prototype, 'id', getUniqueId);
	};


	suite.add("new MyObjWithNoID();", function () {
	new MyObjWithNoID();
	});

	suite.add("new MyObj();", function () {
	new MyObj();
	});

	suite.add("new MyObjWithLazyId();", function () {
	new MyObjWithLazyId();
	});

	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("Lazy Values");
	console.log(new Array(30).join("-"));
	suite.run();
	});