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@DerekZiemba
Last active March 9, 2018 11:42
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Fastest method to slice arguments at index 2 (https://jsbench.github.io/#e68458777bae1f89c06b8ff325c7e67a) #jsbench #jsperf
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Fastest method to slice arguments at index 2</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 ArrayProtoSlice() {
return Array.prototype.slice.call(arguments, 2);
}
function ArrayApplySlice() {
return Array.apply(null, arguments).slice(2);
}
function ForEach() {
var len = arguments.length, args=new Array(len-2); for(var i=2; i<len; i++){ args[i-2] = arguments[i]; }
return args;
}
function ForEachPush() {
var args = []; for(var i=2, len=arguments.length; i<len; i++){ args.push(arguments[i]); }
return args;
}
function doTest(f) {
return f(window.document, 1000, 3.0, 4, 'some string here', {option:true});
}
};
suite.add("ForEach", function () {
//ForEach
doTest(ForEach);
});
suite.add("ForEachPush", function () {
//ForEachPush
doTest(ForEachPush);
});
suite.add("ArrayProtoSlice", function () {
//ArrayProtoSlice
doTest(ArrayProtoSlice);
});
suite.add("ArrayApplySlice", function () {
//ArrayApplySlice
doTest(ArrayApplySlice);
});
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 method to slice arguments at index 2");
console.log(new Array(30).join("-"));
suite.run();
});
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