eslint-plugin-better-js-code (only for study purpose)

This is just an experimental eslint plugin, to test my knowledge on AST, parsers, and eslint plugins in general.

it handles a few interesting challenges you can face when creating a plugin:

• scope navigation (up/down the tree)
• type comparison in JS
• strict vs non strict mode

Check the tests file to understand the scenarios when the plugin would report an error.

If you are considering using a plugin like that, my advice would be to take a look at a type system.

Installation

You'll first need to install ESLint:

npm i eslint --save-dev

Next, clone this repository and create a local link

yarn link

and the following command in the project you would like to test it:

 yarn link eslint-plugin-better-js-code

Usage

Add better-js-code to the plugins section of your .eslintrc configuration file. You can omit the eslint-plugin- prefix:

{
    "plugins": [
        "better-js-code"
    ]
}

Then configure the rules you want to use under the rules section.

{
    "rules": {
        "better-js-code/no-diff-variable-types": 2
    }
}

Supported Rules

• Fill in provided rules here