jridgewell/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8"/>
	<title>Iterating and deleting from a Set</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 () {
		let iterateSet;
		let duplicateSet;

		function buildSets(length) {
		    iterateSet = new Set();
		    duplicateSet = new Set();
		    for (let i = 0; i < length; i++) {
		        iterateSet.add('key' + i);
		        duplicateSet.add('key' + i);
		    }
		}
	};


	suite.add("Short set, delete iterating set", function () {
		// Short set, delete iterating set
		buildSets(5);
		for (const item of iterateSet) {
		    iterateSet.delete(item);
		}
	});

	suite.add("Short set, delete from different set", function () {
		// Short set, delete from different set
		buildSets(5);
		for (const item of iterateSet) {
		    duplicateSet.delete(item);
		}
	});

	suite.add("Medium set, delete iterating set", function () {
		// Medium set, delete iterating set
		buildSets(20);
		for (const item of iterateSet) {
		    iterateSet.delete(item);
		}
	});

	suite.add("Medium set, delete from different set", function () {
		// Medium set, delete from different set
		buildSets(20);
		for (const item of iterateSet) {
		    duplicateSet.delete(item);
		}
	});

	suite.add("Long set, delete iterating set", function () {
		// Long set, delete iterating set
		buildSets(100);
		for (const item of iterateSet) {
		    iterateSet.delete(item);
		}
	});

	suite.add("Long set, delete from different set", function () {
		// Long set, delete from different set
		buildSets(100);
		for (const item of iterateSet) {
		    duplicateSet.delete(item);
		}
	});

	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("Iterating and deleting from a Set");
	console.log(new Array(30).join("-"));
	suite.run();
});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Iterating and deleting from a Set</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 () {
	let iterateSet;
	let duplicateSet;

	function buildSets(length) {
	iterateSet = new Set();
	duplicateSet = new Set();
	for (let i = 0; i < length; i++) {
	iterateSet.add('key' + i);
	duplicateSet.add('key' + i);
	}
	}
	};


	suite.add("Short set, delete iterating set", function () {
	// Short set, delete iterating set
	buildSets(5);
	for (const item of iterateSet) {
	iterateSet.delete(item);
	}
	});

	suite.add("Short set, delete from different set", function () {
	// Short set, delete from different set
	buildSets(5);
	for (const item of iterateSet) {
	duplicateSet.delete(item);
	}
	});

	suite.add("Medium set, delete iterating set", function () {
	// Medium set, delete iterating set
	buildSets(20);
	for (const item of iterateSet) {
	iterateSet.delete(item);
	}
	});

	suite.add("Medium set, delete from different set", function () {
	// Medium set, delete from different set
	buildSets(20);
	for (const item of iterateSet) {
	duplicateSet.delete(item);
	}
	});

	suite.add("Long set, delete iterating set", function () {
	// Long set, delete iterating set
	buildSets(100);
	for (const item of iterateSet) {
	iterateSet.delete(item);
	}
	});

	suite.add("Long set, delete from different set", function () {
	// Long set, delete from different set
	buildSets(100);
	for (const item of iterateSet) {
	duplicateSet.delete(item);
	}
	});

	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("Iterating and deleting from a Set");
	console.log(new Array(30).join("-"));
	suite.run();
	});