Named slots target specific slot locations using name attribute. Example: <slot name='header'>. Content provided using slot='header' attribute. Allows multiple distinct content areas.
Content is passed to named slots using slot attribute. Example: <div slot='header'>Header content</div>. Must match slot name in component. Can pass any valid HTML or components.
Slot props pass data from child to parent through slots. Use let:propertyName directive. Example: <slot name='item' let:item>. Enables parent to access child component data.
Slots enable flexible component composition. Support content injection at multiple points. Allow component reuse with different content. Enable layout component patterns.
Default slots provide fallback content. Example: <slot>Default content</slot>. Content appears when parent doesn't provide slot content. Useful for optional content.
Content is passed to named slots using slot attribute. Example: <div slot='header'>Header content</div>. Must match slot name in component. Can pass any valid HTML or components.
Slot validation checks content type and structure. Handle invalid content. Support content restrictions. Implement validation logic.
Slot events bubble through component hierarchy. Handle event forwarding. Support event modification. Manage event propagation.
State management handles slot-specific state. Implement state containers. Support state sharing. Manage state updates.
Slots are placeholders in components that allow parent components to pass content. Defined using <slot> element. Enable component composition and content projection. Basic slots receive any content passed between component tags.
Use $$slots object to check slot content. Example: {#if $$slots.header}. Available in component script and template. Useful for conditional rendering.
Fallback content appears when slot is empty. Defined between slot tags. Example: <slot>Fallback</slot>. Provides default UI when parent doesn't provide content.
Slot content can be styled in both parent and child. Child styles using :slotted() selector. Parent styles apply normally. Support style encapsulation.
Slot validation checks content type and structure. Handle invalid content. Support content restrictions. Implement validation logic.
Slot events bubble through component hierarchy. Handle event forwarding. Support event modification. Manage event propagation.
State management handles slot-specific state. Implement state containers. Support state sharing. Manage state updates.
Named slots target specific slot locations using name attribute. Example: <slot name='header'>. Content provided using slot='header' attribute. Allows multiple distinct content areas.
Use $$slots object to check slot content. Example: {#if $$slots.header}. Available in component script and template. Useful for conditional rendering.
Slot content can be styled in both parent and child. Child styles using :slotted() selector. Parent styles apply normally. Support style encapsulation.
Conditional slots use if blocks around slots. Handle slot presence checks. Support dynamic slot selection. Example: {#if condition}<slot></slot>{/if}
Slot accessibility ensures content is accessible. Handle ARIA attributes. Support screen readers. Implement a11y patterns.
Default slots provide fallback content. Example: <slot>Default content</slot>. Content appears when parent doesn't provide slot content. Useful for optional content.
Conditional slots use if blocks around slots. Handle slot presence checks. Support dynamic slot selection. Example: {#if condition}<slot></slot>{/if}
Slot accessibility ensures content is accessible. Handle ARIA attributes. Support screen readers. Implement a11y patterns.
Slot props pass data from child to parent through slots. Use let:propertyName directive. Example: <slot name='item' let:item>. Enables parent to access child component data.
Dynamic slot names use computed values. Support runtime slot selection. Handle dynamic content projection. Example: <slot name={dynamicName}>
Slot versioning handles API changes. Implement version migration. Support backwards compatibility. Manage version state.
Slots are placeholders in components that allow parent components to pass content. Defined using <slot> element. Enable component composition and content projection. Basic slots receive any content passed between component tags.
Fallback content appears when slot is empty. Defined between slot tags. Example: <slot>Fallback</slot>. Provides default UI when parent doesn't provide content.
Slots enable flexible component composition. Support content injection at multiple points. Allow component reuse with different content. Enable layout component patterns.
Advanced patterns include render props, compound slots. Handle complex compositions. Support pattern libraries. Implement reusable patterns.
Slot testing verifies content projection. Handle integration testing. Support unit tests. Implement test utilities.
