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Notification

stable:  0.2.4 Coverage: 100.00% Bundle: 23.84kb Lighthouse: 100 Axe Core Released: 0.6.0
Overview API Examples
DefaultActionsCustomStatusVisualContentWrapEventsInteractiveGroupStatusAlignmentPositionPositionGroupDrawerShadowRootLayers

Default

Displays real time updates without interrupting the user's workflow to communicate an important message or status. MDN Popover API

Actions

Notification with actions for immediate user response. Use notifications with actions when the notification requires user decision-making (like "Retry", "View Details", or "Undo"), making the next step clear and reducing friction in error recovery or task completion flows.

Custom Status

test-case

Custom status color for notification. Use custom status color and icon slot to convey a different meaning than the default status color. Use sparingly as it can add unnecessary cognitive load to the user.

Visual

test-case

Standard notification layout with title and body content in centered positioning for consistent notification structure.

Content Wrap

test-case

Notification with text wrapping for longer content. Use when notification messages exceed single-line length, but keep content concise for better readability and user comprehension.

Events

test-case
Event Description open

Dispatched when the notification opens.

toggle

Dispatched on a popover element just after showing or hiding. MDN

beforetoggle

Dispatched on a popover just before showing or hiding. MDN

close

Dispatched when the notification closes.

Interactive Group

Dynamic notification group with programmatic creation and stacking. Perfect for toast-style notifications generated by user actions or system events, with progressive timeout and automatic removal patterns for managing many notifications.

Status

Communicates the intent and semantic meaning of an element to help users understand the outcome of their actions.

Status Description accent Highlights important actions or draws attention to primary interactive elements. warning Indicates cautionary actions that require careful consideration before proceeding. success Represents positive outcomes, confirmations, or constructive actions. danger Signals destructive or irreversible actions that need extra attention and confirmation.

Alignment

test-case

Determines the alignment of the popover relative to the provided anchor element.

Alignment Description start Aligns the popover to the beginning edge of the anchor for left or top alignment. end Aligns the popover to the ending edge of the anchor for right or bottom alignment. center Centers the popover along the anchor's edge for balanced positioning.

Position

test-case

Determines the position of an element along both inline and block axis. MDN

Position Description center Centers the popover directly over the anchor element. top Positions the popover above the anchor element. bottom Positions the popover below the anchor element. left Positions the popover to the left side of the anchor element. right Positions the popover to the right side of the anchor element.

Position Group

test-case

Grouped notifications with consistent positioning for stacking many messages. Use notification groups to manage many alerts in an organized queue, maintaining visual consistency and providing users with a clear notification center.

Drawer

test-case

Notification center pattern using drawer for persistent notification management. Perfect for applications with frequent notifications, allowing users to review, manage, and act on many notifications in a dedicated space with bulk actions.

Shadow Root

test-case

Notification functionality within shadow DOM for Web Component architectures. Verifies proper notification positioning and behavior when used inside encapsulated component boundaries, essential for component libraries.

Layers

test-case

Notification layering with modal dialogs for proper stacking context. Ensures notifications appear above dialogs without interfering with modal interactions, crucial for complex UI layering scenarios.