! A common problem that I encounter a lot happens when developers add an ESLint plugin and expect it to work without adding anything else to make Prettier work. This will bring up all of the settings that you can change right there in your editor. Prettier ships with a handful of format options. We will rewrite our .eslintrc.json file by adding prettier to the extends array and removing any code formatting rules we had: The prettier configuration will override any prior configuration in the extends array disabling all ESLint code formatting rules. Prettier工具少数几个可以定制的参数,在CLI命令行和配置文件中均可用。 Print Width. However, when humans write code, they don’t strive to reach the maximum number of columns on every line. JavaScript 2. JSX 5. Print semicolons at the ends of statements. Best bet is to go with a linter with built-in fixers, such as eslint. We take our unlinted main.js file and apply ESLint on it: We can see that the lines that have too many characters or bad indentation, are marked by prettier/prettier as errors within our ESLint error output. Now, there are a few things you can customize, like: the tab width This is very useful when gradually transitioning large, unformatted codebases to prettier. If you would like to easily format your entire project, add the following to the to the "scripts" field of your package.json. If you have doubts regarding the use of all three tools, you may read my first article on Why You Should Use ESLint, Prettier & EditorConfig. You can also set your preferences in the options. tabs enforces consistent tabs. eslint-plugin-prettier plugs Prettier into your ESLint workflow; eslint-config-prettier turns off all ESLint rules that are unnecessary or might conflict with Prettier To do this, they add this rule to the rules array: This effectively solves the problem by forcing the typescript-eslint indent rule to match the indentation rule of prettier. You will notice this at the bottom right of the editor: However, this means that Prettier and EditorConfig share some configuration options that we do not want to repeat in two separate configuration files and keep them in sync (e.g. A common mistake is to forget our ESLint-Prettier pattern and apply this rule within the .eslintrc.json file like so: The generated error should be of no surprise to you if you followed everything that was said before. To learn more about Prettier’s stance on options – see the Option Philosophy. prettier-atom states: ESLint Integration If you use ESLint, check the “ESLint Integration” checkbox and *poof*, everything should work (we use Kent Dodds’s prettier-eslint plugin under the hood). A main point of his talk is automating things in software projects. Use single quotes instead of double quotes in JSX. But two problems appear: If we follow the pattern described above, no code formatting should be done by ESLint and the newly added plugin is no exception to this pattern. (Tabs will be used for indentation but Prettier uses spaces to align things, such as in ternaries.). Control whether Prettier formats quoted code embedded in the file. If the number of quotes outweighs the other quote, the quote which is less used will be used to format the string - Example: Backwards to the start of the first line containing the selected statement. ! Prettier on save – magic! ; false - Only add semicolons at the beginning of lines that may introduce ASI failures. well-known solution to enforce a consistent coding style along a project If you decide to use ESLint with Prettier rules and have configured husky to run lint-staged, point it at eslint --fix instead of prettier --write. As my second post suggests, the idea is to use the eslint-config-prettier and add 'prettier' in the extends array after Airbnb. page: By far the biggest reason for adopting Prettier is to stop all the on-going debates over styles. Both the babel and flow parsers support the same set of JavaScript features (including Flow type annotations). Whether or not to indent the code inside