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warpech/index.html

Created July 8, 2019 21:27
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index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Inline styles</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>
Raw
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 () {
if(!document.querySelector("#spanWithTextNode")) {
let mySpan = document.createElement('span');
mySpan.setAttribute("id", "spanWithTextNode");
mySpan.appendChild(document.createTextNode('Hi'));
document.body.appendChild(mySpan);
}
var spanWithTextNode = document.querySelector("#spanWithTextNode");
};
suite.add("window.foo = !window.foo;", function () {
window.foo = !window.foo;
if (window.foo) {
spanWithTextNode.style = "margin-left: 20px";
}
else {
spanWithTextNode.style = "margin-left: 10px";
}
});
suite.add("window.foo = !window.foo;", function () {
window.foo = !window.foo;
if (window.foo) {
spanWithTextNode.style.marginLeft = "20px";
}
else {
spanWithTextNode.style.marginLeft = "10px";
}
});
suite.add("window.foo = !window.foo;", function () {
window.foo = !window.foo;
if (window.foo) {
spanWithTextNode.style.setProperty("margin-left", "20px");
}
else {
spanWithTextNode.style.setProperty("margin-left", "10px");
}
});
suite.add("window.foo = !window.foo;", function () {
window.foo = !window.foo;
if (window.foo) {
spanWithTextNode.setAttribute("style", "margin-left: 20px");
}
else {
spanWithTextNode.setAttribute("style", "margin-left: 10px");
}
});
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("Inline styles");
console.log(new Array(30).join("-"));
suite.run();
});
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