eslint-config-xo VS ESLint

Based on your requirements and environment, answer the questions accordingly. At least with eslint version 8.0.1, you are only presented with 2 style guides: standard and XO. Personally, I prefer the standard styling guide but at any give time, it is a personal choice and as such feel free to choose any from a bunch of available options. Once all dependencies are installed, ensure that you have the following packages added as devDependencies to your project:

# 1 - Inicio da configuração do eslint yarn eslint --init # 2 - Escolha a opção "To check syntax, find problems, and enforce code style" How would you like to use ESLint? To check syntax only To check syntax and find problems ❯ To check syntax, find problems, and enforce code style # 3 - Escolha a opção "JavaScript modules (import/export)" What type of modules does your project use? ❯ JavaScript modules (import/export) CommonJS (require/exports) None of these # 4 - Escolha a opção "React" Which framework does your project use? ❯ React Vue.js None of these # 5 - Escolha a opção "Yes" Does your project use TypeScript? No ❯ Yes # 6 - Pressionando a barra de espaço, deixe selecionado somente a opção "Browser" Where does your code run? ✔ Browser Node # 7 - Escolha a opção "Use a popular style guide" How would you like to define a style for your project? … ❯ Use a popular style guide Answer questions about your style Inspect your JavaScript file(s) # 8 - Escolha a opção "Use a popular style guide" How would you like to define a style for your project? … ❯ Use a popular style guide Answer questions about your style Inspect your JavaScript file(s) # 9 - Escolha a opção "Airbnb" Which style guide do you want to follow? ❯ Airbnb: https://github.com/airbnb/javascript Standard: https://github.com/standard/standard Google: https://github.com/google/eslint-config-google XO: https://github.com/xojs/eslint-config-xo # 10 - Escolha a opção "JavaScript" What format do you want your config file to be in? … ❯ JavaScript YAML JSON # 11 - Escolha a opção "Yes" Would you like to install them now with npm? No ❯ Yes

XO - Enforce strict code style using the JavaScript happiness style.

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.