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Write your next custom element with latest lit-element in TypeScript.

Table of contents

• Pre-requisites
• Installation
  • NPM
  • NPX
• Testing
• Getting To Know Yeoman
• Contributing
  • Code of Conduct
• License

Pre-requisites

Please make sure that you have the following dependencies installed and setup correctly:-

• Node.js >= 10.18.1
• NPM >= 6.13.4

Installation

NPM

First, install generator-lit-element-next using NPM (we assume you have pre-installed Node.js).

# Install globally with NPM
$ npm install -g yo generator-lit-element-next

Then generate your new project:

# Create a new directory if you haven't already.
# Then change to that new directory.
$ mkdir my-app && cd my-app

# Init
$ yo lit-element-next

NPX

NPX comes in a package as of Node.js v8.9.0. This means that you can run any CLI written in Node.js without globally installing it.

# Create a new directory if you haven't already.
# Then change to that new directory.
$ mkdir my-app && cd my-app

# Install packages with NPX and execute the CLI with this one-liner
$ npx -p yo -p generator-lit-element-next -- yo lit-element-next

Testing

No option on which testing library/ framework to use to test Web Components and you are feel free to bring your own testing library or framework. But, here are a few to recommend if you haven't already had one:

1. @open-wc/testing
2. webdriverio
3. playwright

Getting To Know Yeoman

• Yeoman has a heart of gold.
• Yeoman is a person with feelings and opinions, but is very easy to work with.
• Yeoman can be too opinionated at times but is easily convinced not to be.
• Feel free to learn more about Yeoman.

Contributing

Code of Conduct

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.

License

MIT License © Rong Sen Ng