DerekZiemba/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8"/>
	<title>Fastest way to filter/compact array</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 () {
		const words = [null, 'This', 'is', 'an', 1, 'array', false, 'of', 'words', 2,  '', 'with', 0, 'some', '', '', 'odd', undefined, '', 'spacing', 'to', 0, 'test', 'filter'];
		const hasValue = (x) => x != null && x != '';


		Array.prototype.compact = function(){
		  return this.filter(hasValue);
		};

		Array.prototype.compact2 = function(){
		  var tmp = [];
		  for (var len = this.length, i = 0, val; i < len; ++i) {
		    val = this[i];
		    if (val != null && val != '') { tmp.push(val); }
		  }
		  return tmp;
		};

		Array.prototype.compactPresize = function(){
		  var len = this.length, tmp = Array(len), count = 0, i = 0, val;
		  for (; i < len; ++i) {
		    val = this[i];
		    if (val != null && val != '') {
		        tmp[count++] = val;
		    }
		  }
		  tmp.length = count;
		  return tmp;
		};

		Array.prototype.compactPresizeCheckType = function(){
		  var len = this.length, tmp = Array(len), count = 0, i = 0, val;
		  for (; i < len; ++i) {
		    val = this[i];
		    if ((typeof val === 'string' || Array.isArray(val)) ? val.length > 0 : val != null) {
		      tmp[count++] = val;
		    }
		  }
		  tmp.length = count;
		  return tmp;
		};

		var isArray = Array.isArray;
		Array.prototype.compactStrictPresizeCheckType = function(){
		  var len = this.length, tmp = Array(len), count = 0, i = 0, val;
		  for (; i < len; ++i) {
		    val = this[i];
		    if (val !== undefined && val !== null && ((typeof val === 'string' || isArray(val)) ? val.length > 0 : true)) {
		      tmp[count++] = val;
		    }
		  }
		  tmp.length = count;
		  return tmp;
		};
	};


	suite.add("Normal", function () {
		// Normal
		return words.filter((x) => x != null && x != '')
	});

	suite.add("return words.compact();", function () {
		return words.compact();
	});

	suite.add("return words.compact2()", function () {
		return words.compact2()
	});

	suite.add("return words.compactPresize()", function () {
		return words.compactPresize()
	});

	suite.add("return words.compactPresizeCheckType()", function () {
		return words.compactPresizeCheckType()
	});

	suite.add("return words.compactStrictPresizeCheckType()", function () {
		return words.compactStrictPresizeCheckType()
	});

	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("Fastest way to filter/compact array");
	console.log(new Array(30).join("-"));
	suite.run();
});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Fastest way to filter/compact array</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 () {
	const words = [null, 'This', 'is', 'an', 1, 'array', false, 'of', 'words', 2, '', 'with', 0, 'some', '', '', 'odd', undefined, '', 'spacing', 'to', 0, 'test', 'filter'];
	const hasValue = (x) => x != null && x != '';


	Array.prototype.compact = function(){
	return this.filter(hasValue);
	};

	Array.prototype.compact2 = function(){
	var tmp = [];
	for (var len = this.length, i = 0, val; i < len; ++i) {
	val = this[i];
	if (val != null && val != '') { tmp.push(val); }
	}
	return tmp;
	};

	Array.prototype.compactPresize = function(){
	var len = this.length, tmp = Array(len), count = 0, i = 0, val;
	for (; i < len; ++i) {
	val = this[i];
	if (val != null && val != '') {
	tmp[count++] = val;
	}
	}
	tmp.length = count;
	return tmp;
	};

	Array.prototype.compactPresizeCheckType = function(){
	var len = this.length, tmp = Array(len), count = 0, i = 0, val;
	for (; i < len; ++i) {
	val = this[i];
	if ((typeof val === 'string' \|\| Array.isArray(val)) ? val.length > 0 : val != null) {
	tmp[count++] = val;
	}
	}
	tmp.length = count;
	return tmp;
	};

	var isArray = Array.isArray;
	Array.prototype.compactStrictPresizeCheckType = function(){
	var len = this.length, tmp = Array(len), count = 0, i = 0, val;
	for (; i < len; ++i) {
	val = this[i];
	if (val !== undefined && val !== null && ((typeof val === 'string' \|\| isArray(val)) ? val.length > 0 : true)) {
	tmp[count++] = val;
	}
	}
	tmp.length = count;
	return tmp;
	};
	};


	suite.add("Normal", function () {
	// Normal
	return words.filter((x) => x != null && x != '')
	});

	suite.add("return words.compact();", function () {
	return words.compact();
	});

	suite.add("return words.compact2()", function () {
	return words.compact2()
	});

	suite.add("return words.compactPresize()", function () {
	return words.compactPresize()
	});

	suite.add("return words.compactPresizeCheckType()", function () {
	return words.compactPresizeCheckType()
	});

	suite.add("return words.compactStrictPresizeCheckType()", function () {
	return words.compactStrictPresizeCheckType()
	});

	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("Fastest way to filter/compact array");
	console.log(new Array(30).join("-"));
	suite.run();
	});