# CodeLens Sample
This is a sample extension that shows the usage of the CodeLens API.
It is not intended as a production quality extension.
- Create a new file - Write anything - Click on the CodeLens for action example - Can be enabled or disabled by command palette
## Demo
## VS Code API
### `languages` module
- [`languages.registerCodeLensProvider`](https://code.visualstudio.com/api/references/vscode-api#languages.registerCodeLensProvider)
### CodeLens Provider
- [`CodeLensProvider`](https://code.visualstudio.com/api/references/vscode-api#CodeLensProvider) - [`CodeLensProvider.provideCodeLenses`](https://code.visualstudio.com/api/references/vscode-api#CodeLensProvider.provideCodeLenses) - [`CodeLensProvider.resolveCodeLens`](https://code.visualstudio.com/api/references/vscode-api#CodeLensProvider.resolveCodeLens)
## Running the Sample
- Run `npm install` in terminal to install dependencies - Run the `Run Extension` target in the Debug View. This will: - Start a task `npm: watch` to compile the code - Run the extension in a new VS Code window