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Created July 11, 2017 18:35
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dom walking versus querySelector - 3 (http://jsbench.github.io/#19326344341cbc33122e0e8fbbd21b5a) #jsbench #jsperf
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>dom walking versus querySelector - 3</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;
suite.add("(function () {", function () {
(function () {
var a = 0,
b = 0,
c = 0,
tdlen = 0,
tabs = 0,
table = [],
td = [],
tds = [],
list = document.getElementsByTagName("div"),
len = list.length;
do {
table.push(list[a].getElementsByTagName("table"));
a = a + 1;
} while (a < len);
a = 0;
do {
tabs = table[a].length;
if (tabs > 0) {
b = 0;
do {
tds = table[a][b].getElementsByTagName("td");
if (tds !== null) {
tdlen = tds.length;
c = 0;
do {
td.push(tds[b]);
c = c + 1;
} while (c < tdlen);
}
b = b + 1;
} while (b < tabs);
}
a = a + 1;
} while (a < len);
return td;
}());
});
suite.add("document.querySelectorAll(\"div table td\")", function () {
document.querySelectorAll("div table td")
});
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("dom walking versus querySelector - 3");
console.log(new Array(30).join("-"));
suite.run();
});
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