IntersectionObserverEntry.target

The IntersectionObserverEntry interface's read-only target property indicates which targeted Element has changed its amount of intersection with the intersection root.

Value

The IntersectionObserverEntry's target property specifies which Element previously targeted by calling IntersectionObserver.observe() experienced a change in intersection with the root.

Examples

In this simple example, each targeted element's opacity is set to its intersectionRatio.

function intersectionCallback(entries) {
  entries.forEach((entry) => {
    entry.target.opacity = entry.intersectionRatio;
  });
}

To see a more concrete example, take a look at Handling intersection changes in Timing element visibility with the Intersection Observer API.

Specifications

Specification
Intersection Observer
# dom-intersectionobserverentry-target

Browser compatibility

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