To solve this problem, I ended up using the TSLint-ESLint package. The TSLint indent rule allows you to specify the type of indentation (tabs vs. For example, there isn’t a TSLint rule that enforces a standard indentation amount. When working on our TSLint setup, I noticed that it didn’t support several rules that I wanted to use. If you’d prefer to use single quote marks, you can override that requirement by adding the following to the rules sections of your tslint.json file:Ī full set of rules and their descriptions can be found on the TSLint rules page. This is controlled via the quotemark rule. You can also manually enable or override rules.Īs an example, the recommended rule set requires strings to be double quoted. There are other base rule sets you can use. Stable, somewhat opinionated set of rules which we encourage for general TypeScript programming The TSLint docs describe the recommended rule set as a The above default tslint.json just extends the recommended rule set tslint:recommended. Once you have TSLint installed and running, it’s important to make sure you have the right rules configured. Lint: "yarn lint:client yarn & lint:server" Our package.json file contains the following lint tasks: We have yarn scripts to lint our server app, client app, and both. I’m currently working on a full-stack TypeScript app using React. If you are working on a React app, you probably want to include a tsx file as well, so you can update the file matcher to src/**/*.ts*. For example, the docs suggest the following to lint all of your TypeScript files: This configuration file can be provided when running TSLint.
To generate a basic configuration file, which creates a tslint.json file that looks like this: In this post, I’ll describe how to install and configure it. It’s pretty similar to the well-known JavaScript linting libraries. The most popular TypeScript linting library is TSLint. If you have used JavaScript linting tools, you might be familiar with libraries such as JSLint, JSHint, or ESLint. It can help catch bugs, enforce uniform code style, and prevent overly complex code. Linting is among the most common and helpful types of static analysis for JavaScript. A good static analysis pipeline can be very helpful.
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