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In the package.json add a script to format files matching the mask and to write them back to disk. So I highly recommend the following VSCode settings 1įormatting every file as you save it is nice, but we can also format ALL source files at once using Prettier CLI.

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Tip: I love formatting code on 'Save', but I hate formatting code on 'Paste' - because it always adds extra line breaks. Single quotes, no semi-colons, trailing commas. The same JavaScript code in projectB/index.js gets formatted by Prettier using different local settings and ends up looking different. It also split long object across multiple lines to make it easier to read. Notice the double quotes, semi-colons, etc - Prettier has applied the settings from projectA/.prettierrc.json. Here is me formatting projectA/index.js file by saving it. Now every time we save a JavaScript file, it will be formatted using Prettier automatically. 'faultFormatter' : 'esbenp.prettier-vscode' , vscode/settings.json to source control to make sure everyone uses the same extension to format the code.vscode/settings.json 1

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To use the Prettier we have just installed from VSCode we need to install the Prettier VSCode extension:īecause you might have global settings related to code formatting, I prefer having in each repository a file with local workspace VSCode settings. The second project uses more modern style without semi-colons and with trailing commas. Here are settings I am using in the first project to make it look 'traditional' ES5 projectA/.prettierrc.json 1 Prettier tries to enforce the same code style without 100s of options, thus there are just a few settings you can change. So when I edit projectA/.prettierrc.json file, I get intelligent tooltips.

In fact, VSCode understands the Prettier configuration file format via the built-in json schema. I like using JSON configuration format so my code editor helps me. In my example I have two subfolders, and there is a configuration file in each subfolder: 1 Npm install -save-dev -save-exact prettierĪt the root of the project create the Prettier configuration file. I assume you are using NPM and have package.json file inside the repository. In reality, each of your repos will have its style I am using subfolders in order to keep the example simple. The demo repo bahmutov/prettier-config-example has two subfolders, each with its distinct code style, enforced by Prettier. Not every project uses the same code style, thus it is important to respect the style of whatever project you are currently working in. When setting up Prettier it is important to configure it per-project. format the changed files on Git commit before committing them.

format the file from VSCode every time I save it.

I prefer to use two solutions described in this blog post: You can use Prettier from command line, or from your code editor whenever you paste or save a file. The code just magically gets to the format you pick. By using Prettier your team skips ALL disagreements about spacing, variable declarations, semi-colons, trailing commas, etc. It takes whatever copy/pasted code snippets you put into your file and makes it look the same as the rest of the code. Prettier reformats your JavaScript code consistently and (arguably) in way that is easy to read and understand.

VSCode + ESLint + Prettier + TypeScript setup.

You can find the sample project with different Prettier settings configured per-subfolder at bahmutov/prettier-config-example.

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This blog post shows how to configure Prettier to work from command line, from VSCode and from Git hooks. This allows you to get a consistent formatting without thinking or arguing about it. You can configure JavaScript code auto-formatting with Prettier to work per-project.

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