10 Steps to Create a Custom ESLint Plugin

Rahul Sharma (DevsMitra)
3 min readJun 28, 2024
10 Steps to Create a Custom ESLint Plugin — Rahul Sharma

Ever get frustrated with confusing or inconsistent function names in your code?

In this article, we’re going to solve that problem by creating a custom ESLint plugin to keep code neat and readable by enforcing consistent function names.

So, what’s ESLint? Think of it as a helpful tool that checks your code for mistakes and makes sure you’re following good coding practices. The cool part? You can create your own rules to fit your style!

Let’s get started:

  • New Project: Create a new project and install ESLint by running the following command in your terminal:
mkdir myplugin
cd myplugin
npm init --y
npx eslint --init
  • Plugin Directory: Next, create a directory called eslint-plugin and a file named index.js inside it. This is where our custom rules will live.
  • Plugin Structure: In index.js, we’ll set up our plugin. This file will have some properties like meta and rules.
  • meta: This holds the plugin name and version.
  • rules: This is where we’ll define our custom rule to check function names.
const plugin = {
meta: {
name: "func-prefix-matching",
version: "0.0.1",
},
rules: {}
};
  • Rule Object: Inside…

--

--

Rahul Sharma (DevsMitra)

I’m a technology enthusiast who does web development. Passionate to contribute to open-source projects and make cool products.