IntersectionObserver class
The interface of the Intersection Observer API provides a way to asynchronously observe changes in the intersection of a target element with an ancestor element or with a top-level document's viewport. The ancestor element or viewport is referred to as the root. When an is created, it's configured to watch for given ratios of visibility within the root. The configuration cannot be changed once the is created, so a given observer object is only useful for watching for specific changes in degree of visibility; however, you can watch multiple target elements with the same observer.
- Available Extensions
- Annotations
-
- @JS()
- @staticInterop
Constructors
- IntersectionObserver(IntersectionObserverCallback callback, [IntersectionObserverInit? options])
-
factory
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited