#Prettier code formatter install#
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.
![prettier code formatter prettier code formatter](https://prettier.io/images/editors/visualstudio-128px.png)
The code just magically gets to the format you pick.
![prettier code formatter prettier code formatter](https://cdn-images-1.medium.com/max/1600/1*BvwKKsK2Skr7FcQ-hP6Zrg.gif)
![prettier code formatter prettier code formatter](https://miro.medium.com/max/1104/1*pyjL5iY4fO_bz8XovKHOgQ.png)
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.
#Prettier code formatter how to#
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. Now, get on with more interesting programming tasks than dealing with how to format code, and don’t argue with it anymore.You can configure JavaScript code auto-formatting with Prettier to work per-project. Īnd you’re done, formatting is done by editors directly, checked by the CI, and everyone can read it. You’ll also need to add the next line to your CI: npx prettier -check. Īs your branch will be quite hard to rebase, do merge other PRs before that and sync with your team as when it is best to apply this new coding guideline. First, set it up in your code-editor, then make a first pass with (at project root) (it will only format known files): npx prettier -write. I use it in my new web projects, where it’s really easy to integrate. Overall, formatting is not though anymore, just done. Or merging an object initialization if it is small enough. As such, no more endless discussion on it, just use it™©®! It has many advantages, such as splitting a function call when too many arguments are passed. One of the most interesting features it has, is that it doesn’t compromise: you can’t (much) configure it. A friendly newcomer and well accepted already. And finally, it is used by some very big project: Dropbox, ReactJS, Webpack & Facebook. It works with most editors, Vim, Emacs, Atom, VS and JetBrains’ IDEs. Let’s welcome prettier, a newcomer in the formatting world, aimed at precisely theses languages.Īmong others, it supports JavaScript, TypeScript, JSON, HTML, Angular, CSS, Markdown, YAML, TOML, XML, enough for any webapp.
![prettier code formatter prettier code formatter](https://matwrites.com/wp-content/uploads/2017/07/featured-image-snippets4.png)
Do you remember the hours-long discussions on using tabs versus spaces? Where to add empty lines? Alignment of fields? For some years now, many languages provide their own code formatter, Go has gofmt, Rust has cargo fmt, some have a standard-by-usage, Python has black, Scala has scalafmt, but nothing was appropriate for the web languages in general. Code formatting is the most known instance of bikeshedding: everyone has a different opinion on it and nobody is willing to compromise.