Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Directive Implementations (https://jsbench.github.io/#4f3d62eb97bd1c992a5257d34fcebea0) #jsbench #jsperf
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Directive Implementations</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 directives = new WeakMap();
function directive(f) {
return (...args) => {
const d = f(...args);
directives.set(d, true);
return d;
};
}
const adderDirective = directive(x => {
return y => x + y;
});
function opaque(f, inner) {
return (...args) => {
return {inner, value: f(...args), __isDirective: true};
};
}
const adderOpaque = opaque((x) => {
return x;
}, (x, y) => {
return x + y;
});
};
suite.add("Returning closure", function () {
// Returning closure
const add = adderDirective(1);
if (directives.has(add)) {
add(2);
}
});
suite.add("Returning opaque array", function () {
// Returning opaque array
const add = adderOpaque(1);
if (add.__isDirective) {
const inner = add.inner;
inner(add.value, 2);
}
});
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("Directive Implementations");
console.log(new Array(30).join("-"));
suite.run();
});
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.