CodeFactor.io
JSLint
Codacy
ESLint
Coala
Prettier
HTML-Cleaner.com
Online Javascript Validator validates javascript code and find errors and warnings that can be fixed. See real time validation of your javascript code as you type.

usefmtly
JSLint
Text Formatter
CodifyFormatter.org
ESLint
Text-Utils
CodeFactor.io
The pluggable linting tool for text and markdown

Which is more popular?
Based on our record, Javascript Validator seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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JV
Javascript Validator
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| Website | beautifytools.com | textlint.github.io |
| Pricing | — | |
| Listed in |
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Javascript Validator and textlint. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Try pasting your code into a validator to see if you don't have a typo somewhere: https://beautifytools.com/javascript-validator.php. Source: over 4 years ago
So everything works fine the way I see it and that error only comes up after a few clicks. Since I'm not a js wizard I did put your script code into a javascript validator and it looks like you're missing a couple of semi colons here and... Source: almost 5 years ago
Tracking textlint since Jul 2022.
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The fully pluggable JavaScript code quality tool
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