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We’ll start by cloning our sample LWC project from this Git repository: https://github.com/gjtorikian/sfdc-linting
Salesforce developed Lightning Web Components (LWC) as a fast, enterprise-grade wrapper around vanilla web components. LWC is built on the same HTML, CSS, and JavaScript that powers the web, so any analyzer for those languages can be applied here.
Run npm install to download the project’s dependencies. ESLint is among them, but you’re also getting LWC specific ESLint plugins. We’ll go into more details on these below!
In this post, we’ll integrate ESLint with your LWC project. We’ll also learn how to integrate ESLint with your editor and your CI system, just like we did with PMD.
Before getting started, you should have a relatively recent version of Node installed. Some familiarity with JavaScript can also help, but it’s not essential. We’ll also be using VS Code for this tutorial.