LWC vs Aura File Structure

Component Bundles

The component bundle file structure is different for an Aura component and a Lightning web component. Here’s how the files map between the two types of components.

 A Lightning web component must include an HTML file, a JavaScript file, and a configuration file. It can optionally include a CSS file, SVG, and more JavaScript files.

A component that doesn’t render any UI, also known as a service component or library, must include a JavaScript file and a metadata configuration file.

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