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LayoutShiftAttribution: previousRect property

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The previousRect read-only property of the LayoutShiftAttribution interface returns a DOMRectReadOnly object representing the position of the element before the shift.

Value

A DOMRectReadOnly object.

Examples

The following example prints the previousRect of the first item in LayoutShift.sources to the console.

js

new PerformanceObserver((list) => {
  for (const { sources } of list.getEntries()) {
    if (sources) {
      console.log(sources[0].previousRect);
    }
  }
}).observe({ type: "layout-shift", buffered: true });

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
previousRect 84 84 No No 70 No 84 84 No 60 No 14.0

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https://developer.mozilla.org/en-US/docs/Web/API/LayoutShiftAttribution/previousRect