Infinitay/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8"/>
	<title>Cumulative Sum</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 myArray = [...Array(10000).keys()]
	};


	suite.add("Map", function () {
		// Map
		function prefixSum(nums) {
		  let psum = 0;
		  return nums.map(x => psum += x);
		};

		prefixSum(myArray);
	});

	suite.add("Reduce", function () {
		// Reduce
		var runningSum = function(nums) {

		    nums.reduce((acc, _, i) => (nums[i] += acc));
		    return nums;
		};
		runningSum(myArray);
	});

	suite.add("Map + reduce", function () {
		// Map + reduce
		myArray.map((elem, index) => myArray.slice(0,index + 1).reduce((a, b) => a + b));
	});

	suite.add("Map using ||", function () {
		// Map using ||
		let sum = 0;
		myArray.map(elem => sum = (sum || 0) + elem)
	});

	suite.add("D3.js cumsum", function () {
		// D3.js cumsum
		function cumsum(values, valueof) {
		  var sum = 0, index = 0;
		  return Float64Array.from(values, valueof === undefined
		    ? v => (sum += +v || 0)
		    : v => (sum += +valueof(v, index++, values) || 0));
		}

		cumsum(myArray);
	});

	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("Cumulative Sum");
	console.log(new Array(30).join("-"));
	suite.run();
});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Cumulative Sum</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 myArray = [...Array(10000).keys()]
	};


	suite.add("Map", function () {
	// Map
	function prefixSum(nums) {
	let psum = 0;
	return nums.map(x => psum += x);
	};

	prefixSum(myArray);
	});

	suite.add("Reduce", function () {
	// Reduce
	var runningSum = function(nums) {

	nums.reduce((acc, _, i) => (nums[i] += acc));
	return nums;
	};
	runningSum(myArray);
	});

	suite.add("Map + reduce", function () {
	// Map + reduce
	myArray.map((elem, index) => myArray.slice(0,index + 1).reduce((a, b) => a + b));
	});

	suite.add("Map using \|\|", function () {
	// Map using \|\|
	let sum = 0;
	myArray.map(elem => sum = (sum \|\| 0) + elem)
	});

	suite.add("D3.js cumsum", function () {
	// D3.js cumsum
	function cumsum(values, valueof) {
	var sum = 0, index = 0;
	return Float64Array.from(values, valueof === undefined
	? v => (sum += +v \|\| 0)
	: v => (sum += +valueof(v, index++, values) \|\| 0));
	}

	cumsum(myArray);
	});

	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("Cumulative Sum");
	console.log(new Array(30).join("-"));
	suite.run();
	});