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Created August 27, 2020 23:59
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Try/catch impact on performance (http://jsbench.github.io/#3b9008504d3e8d04b6edd7a32fb2bbc5) #jsbench #jsperf
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Try/catch impact on performance</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 () {
let WTF = false;
function withTryCatch(cstr) {
let idx, res;
try {
idx = cstr.search(/\d/);
} catch(e) { if(WTF) throw e; }
try {
res = [cstr.substring(0, idx), cstr.substring(idx)];
} catch(e) { if(WTF) throw e; }
return res;
}
function withoutTryCatch(cstr) {
let idx, res;
idx = cstr.search(/\d/);
res = [cstr.substring(0, idx), cstr.substring(idx)];
return res;
}
};
suite.add("withTryCatch(\"AB12\");", function () {
withTryCatch("AB12");
});
suite.add("withoutTryCatch(\"AB12\");", function () {
withoutTryCatch("AB12");
});
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("Try/catch impact on performance");
console.log(new Array(30).join("-"));
suite.run();
});
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