qunit VS ESLint

Mocha can also run in the browser: https://mochajs.org/#running-mocha-in-the-browser. An alternative library that can also run in the browser is QUnit: https://qunitjs.com/. You can include both with

QUNIT: QUnit was first installed on NPM, which is a javascript testing framework. It’s a javascript based unit testing framework. For more info: https://qunitjs.com/

Erm... QUnit?

It is a known fact that before any developer pushes the code (either to the development environment or Staging environment before migrating to the Production environment), he would be performing unit testing on the code changes that he has made. For unit testing, developers have a variety of unit-testing frameworks to choose from. JUnit and Jasmine are the most popular unit-testing frameworks. Other types of tests performed at a module/package level are functional tests and visual regression tests. Cucumber is a popular choice for Behavior-Driven Development (BDD) or functional testing, and a visual screenshot comparison tool named Wraith is preferred for performing visual regression testing.

I've written a JavaScript test framework on top of QUnit. The framework runs tests synchronously by running each one in a Promise. (Sorry for the length of this code block. I commented it as best I can, so it feels less tedious.)

Tests are located in the test/ folder. Load test/test.html in your browser of choice with any HTTP server you like (I use http-server). Tests are written in QUnit and are…

However, jQuery is still used today and has spawned other projects like jQuery UI and Quint.

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

1. Lack of Static Code Analysis Static code analysis tools like TypeScript and ESLint play a crucial role in identifying and preventing bugs. TypeScript provides static typing, enhancing the robustness of the code. ESLint detects issues and enforces coding standards. The absence of these tools can significantly elevate the likelihood of bugs due to the lack of early detection and guidance provided during development.