Logik-Web-Component-library

Setup

Install dependencies:

yarn

Build

To build the JavaScript version of your component:

yarn build

To watch files and rebuild when the files are modified, run the following command in a separate shell:

yarn build:watch

Testing

Tests can be run with the test script, which will run your tests against Lit's development mode (with more verbose errors) as well as against Lit's production mode:

yarn test

For local testing during development, the test:dev:watch command will run your tests in Lit's development mode (with verbose errors) on every change to your source files:

yarn test:watch

Alternatively the test:prod and test:prod:watch commands will run your tests in Lit's production mode.

Dev Server

yarn serve

There is a development HTML file located at /dev/index.html that you can view at http://localhost:8000/dev/index.html. Note that this command will serve your code using Lit's development mode (with more verbose errors). To serve your code against Lit's production mode, use yarn serve:prod.

Editing

If you use VS Code, you should install the lit-plugin extension, which enables some extremely useful features for lit-html templates:

• Syntax highlighting
• Type-checking
• Code completion
• Hover-over docs
• Jump to definition
• Linting
• Quick Fixes

The project is setup to recommend lit-plugin to VS Code users if they don't already have it installed.

Linting

Linting of TypeScript files is provided by ESLint and TypeScript ESLint. In addition, lit-analyzer is used to type-check and lint lit-html templates with the same engine and rules as lit-plugin.

The rules are mostly the recommended rules from each project, but some have been turned off to make LitElement usage easier. The recommended rules are pretty strict, so you may want to relax them by editing .eslintrc.json and tsconfig.json.

To lint the project run:

yarn lint

Formatting

Prettier is used for code formatting.

Static Site

This project includes a simple website generated with the eleventy static site generator and the templates and pages in /docs-src. The site is generated to /docs and intended to be checked in so that GitHub pages can serve the site from /docs on the master branch.

To enable the site go to the GitHub settings and change the GitHub Pages "Source" setting to "master branch /docs folder".

To build the site, run:

yarn docs

To serve the site locally, run:

yarn docs:serve

To watch the site files, and re-build automatically, run:

yarn docs:watch

The site will usually be served at http://localhost:8000.