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@galvez
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Created December 19, 2020 11:55
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symbol vs string property (http://jsbench.github.io/#c71181ad3112daa34cedb0b24af44e7f) #jsbench #jsperf
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>symbol vs string property</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 count = 100000
const aa = Symbol();
const bb = Symbol();
class A {
[aa] = new Array(count);
[bb](i) {
return i * 100;
}
}
const a = new A();
class B {
aa = new Array(count);
bb(i) {
return i * 100
}
}
const b = new B()
};
suite.add("for (let i = 0; i < count; i++) {", function () {
for (let i = 0; i < count; i++) {
a[aa][i] = a[bb](i);
}
});
suite.add("for (let i = 0; i < count; i++) {", function () {
for (let i = 0; i < count; i++) {
b.aa[i] = b.bb(i);
}
});
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("symbol vs string property");
console.log(new Array(30).join("-"));
suite.run();
});
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