Last active
September 7, 2016 23:30
-
-
Save reekoheek/73ef9720ef1c9e60ece4ee07fddd39a3 to your computer and use it in GitHub Desktop.
String#endsWith(x) vs String#substr(-1) === x vs x === String#substr(-1) #jsbench #jsperf (http://jsbench.github.io/#73ef9720ef1c9e60ece4ee07fddd39a3) #jsbench #jsperf
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title>String#endsWith(x) vs String#substr(-1) === x vs x === String#substr(-1) #jsbench #jsperf</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> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| "use strict"; | |
| (function (factory) { | |
| if (typeof Benchmark !== "undefined") { | |
| factory(Benchmark); | |
| } else { | |
| factory(require("benchmark")); | |
| } | |
| })(function (Benchmark) { | |
| var suite = new Benchmark.Suite; | |
| suite.add("if ('foo'.endsWith('o'));", function () { | |
| if ('foo'.endsWith('o')); | |
| }); | |
| suite.add("if ('foo'.substr(-1) === 'o');", function () { | |
| if ('foo'.substr(-1) === 'o'); | |
| }); | |
| suite.add("if ('o' === 'foo'.substr(-1));", function () { | |
| if ('o' === 'foo'.substr(-1)); | |
| }); | |
| 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("String#endsWith(x) vs String#substr(-1) === x vs x === String#substr(-1) #jsbench #jsperf"); | |
| 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