One of the primary benefits of using slots is the ability to create reusable components. Here are several advantages of using slots in Lightning Web Components: Now, if the parent component does not provide content for the body slot, the default content will be used: Let’s modify our card component to include default content for the body: This content will be used if the parent component does not provide any content for that slot. You can also specify default content within a slot. This is the content inside the card body. Now, when using the card component, you can provide content for both the header and the body: Let’s enhance our card component to include a header and a body: Named slots allow you to have multiple placeholders in a component, each serving a specific purpose. While the example above uses a default slot, LWC also supports named slots. When the cardComponent is rendered, it will look like this:
In this example, the element inside the parentComponent is the content that will be injected into the slot of the cardComponent.