Power Platform offers a 'No code/low code' approach for app development, but more complex logic often requires client scripts in Model-driven apps.
Building Model-driven apps involves extending forms with client scripts using JavaScript, TypeScript, PowerFx, and C#.
For beginners, Microsoft Learn provides a guide on using client scripts effectively in Power Platform.
Remember to add .js at the end of the client script resource for easier debugging.
Configure external dependencies as web resource dependencies for loading with the form.
Using TypeScript over JavaScript is recommended for better tooling and type safety, especially with Dataverse DevTools extension in Visual Studio Code.
Debugging client scripts locally can save time; Fiddler Auto Responder method is recommended for script web resource development.
Rebuild projects in build-dev mode for local testing and optimizing the final JavaScript file size.
Unit testing and automated testing are essential for stable codebases in Model-driven apps, with tools like xrm-mock and Power Apps Test Engine.
Ensure to clear cache when debugging scripts to avoid issues caused by cached JavaScript files.