umd VS ESLint

Check out this fascinating GitHub project for more examples of UMD formats.

UMD (Universal Module Definition) is a set of tricky patterns to make your code file work in multiple environments.

Exports in a umd format so the library works everywhere.

A module format is the syntax we use to define a module. Different module formats such AMD, CommonJS, UMD and System.register have emerged in the past and a native module format is now available since ES6.

Supports circular references

To make UMD build available on both browsers and Node.js, set globalObject option to 'this'.

A modular system that your compiled application will use. You can choose: None, CommonJS, AMD, System, UMD, ES6, ES2015, ES2020 or ESNext. For backend apps/packages ES6 or CommonJS is suitable depending on Node.js version you want to support. For frontend apps ES6 is also suitable. And for support of older browsers and isomorphic applications, UMD is definitely worth choosing.

Do you have the need to find and fix problems in your JavaScript? Then ESLint is for you. With over 120 million downloads each month, it's definitely one of the most popular projects out there. The latest version introduces a new configuration system, designed to simplify available configuration options. Old and deprecated rules have been removed, and a new configuration inspector has been added. Check out the blog for all the highlights, and a migration guide.

ESLint: A pluggable and configurable linter tool for identifying and reporting on patterns in JavaScript.

Automating code checks with static code analysis allows us to enforce code styling effectively. By integrating tools into our workflow, we can identify errors at an early stage, while coding instead of blocking us at the end. For instance, flake8 checks Python code for style and errors, eslint performs similar checks for JavaScript, and prettier automatically formats code to maintain consistency.

If you're a developer, you're surely familiar with Prettier and ESLint. With over 8 years of existence, they have established themselves as references in the JavaScript ecosystem.

eslint is used to avoid code errors

No lint errors: The committed code does not contain any lint errors (eslint).

Let’s walk through the steps for a one-time setup to configure husky pre-commit and pre-push hooks, ESLint with code styles conventions, prettier code formatter, and lint-staged. Husky automatically runs a script on each commit or push. This is useful for linting files to enforce code styles that keeps the entire code base following conventions.

GitHub | Website

ESLint: A pluggable and configurable linter tool for identifying and reporting on patterns in JavaScript.

ESLint