In this article I am going to list top 10 linter libraries for javascript. Linter makes your code readable and error free. They prettify and inform you about your syntax errors by rightfully pointing at line numbers.
1. ESLint – A pluggable javascript linter
Number one in our list is ESLint. The best part of this library is that most of the common errors are fixed automatically. Not only that, you can easily customize it to work according to your needs.
So, if you are looking for feature rich linter for your javascript IDE, then our recommendation is ESLint.
2. JSLint – A Javascript code quality tool
Their tagline says it all. It is a wonderful library to maintain the code quality in your application development. This is one of the first linter developed for javascript.
3. JSHint – Providing hints for improvement
JSHint is a static code analysis tool for javascript. According to them, only 15% of the code passes their checks while all others have some kind of bugs or possibilities of improvement. Engineers from big tech companies uses this tool.
4. StandardJS – JavaScript Standard Style
StandardJS is a plug-n-play kind of library. You don’t need to make any configuration changes or any file to maintain. In fact, you can simply run the “standard” command and it automatically checks all the javascript files within the current working directory.
Plugins for StandardJS are available for all major editors and IDE.
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5. RSLint – Rust based Javascript linter
Speed is the selling point of this library. Since its written in Rust, there is no doubt that it will outperform most of its rivals. You don’t need Node to run it. In fact they are providing binaries for all major operating systems. It’s so fast that you can use it on the fly. You write the code and it will detect error simultaneously.
You need to know that RSLint is quite new in the market and still in development. So, you can expect bugs.
6. Deepscan – Making Javascript Better
Deepscan is more than just a linter. It’s a code quality solution. But it is free for open source projects only.
This library focuses on the run time errors. This is what makes it different from any other linter in the market.
7. JavaScript Lint – A Common Linter
This library is based on the javascript engine for the firefox browser. Hence, it knows the best practices for coding. The documentation is fairly simple and you can easily integrate it with your favorite editor.
8. Coffeelint – A Coffeescript Linter
If you prefer to write your client side code in coffeescript then you will need coffeelint for your code cleaning. There is an online console on their website to test coffeescript codes for any errors and improvements.
9. PureScript Linter
If you are a fan of purescript then there is a good news for you. Purescript has an inbuilt linter in its library which is written in Haskell.
10. TSLint – A TypeScript Linter
TSLint is developed for typescript code checking. This library is deprecated now and they are recommending to use ESLint instead. But if you wish to use it then it’s still available for download.