test262
String.prototype.trimStart
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| test262 | String.prototype.trimStart | |
|---|---|---|
| 5 | 1 | |
| 2,190 | 4 | |
| 1.9% | - | |
| 9.2 | 5.6 | |
| 10 days ago | about 1 month ago | |
| JavaScript | JavaScript | |
| GNU General Public License v3.0 or later | MIT License |
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test262
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The Ladybird Browser Project
Indeed. These may be even more important...
https://github.com/tc39/test262
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[2023-07-12] Razuberi Development Update
I successfully executed the assert-true.js and assert-false.js tests in the harness folder of the test262 repo. (This folder is full of tests which test the test harness itself.)
- The death of Mozilla is the death for open web
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Enumerating and analyzing 40 non-V8 JavaScript implementations
I have used a few js engines in the past (nashorn, rhino, otto) and all had problems with missing edge cases in the APIs or really weird quirks in the interop with the host environment.
https://github.com/tc39/test262 is the ecma test suite.
rhino for example has extensive gaps:
- I bought ISO 8601-1:2019 and 8601-2:2019. AMA
String.prototype.trimStart
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How to Left Trim a String in JavaScript
The trimStart() function is a relatively recent addition to JavaScript, so you need a polyfill if you want to use trimStart() in Internet Explorer or Node.js < 10.0.0. An alternative is to use the string replace() function with a regular expression.
What are some alternatives?
engine262 - An implementation of ECMA-262 in JavaScript
fromentries - Object.fromEntries() ponyfill (in 6 lines)
rhino - Rhino is an open-source implementation of JavaScript written entirely in Java
core-js - Standard Library
wtfjs - 🤪 A list of funny and tricky JavaScript examples
React PWA - An upgradable boilerplate for Progressive web applications (PWA) with server side rendering, build with SEO in mind and achieving max page speed and optimized user experience.
qtdeclarative - Qt Declarative (Quick 2)
Jint - Javascript Interpreter for .NET
mjs - ECMAScript Interpreter
ChakraCore - ChakraCore is an open source Javascript engine with a C API.
razuberi - a JavaScript/TypeScript -> C++ transpiler