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use-element-size

Get element width and height and subscribe to changes
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Package
@mantine/hooks

Usage

Resize textarea by dragging its right bottom corner
Width: 0px, height: 0px
import { useElementSize } from '@mantine/hooks';


function Demo() {
  const theme = useMantineTheme();
  const { ref, width, height } = useElementSize();


  return (
    <>
      <textarea ref={ref} style={{ width: 400, height: 120 }} />
      <div>Width: {width}px, height: {height}px</div>
    </>
  );
}

API

use-element-size is a simpler version of use-resize-observer hook. Hook returns ref object that should be passed to the observed element, and the element's height and width. On the first render (as well as during SSR), or when no element is being observed, width and height properties are equal to 0.

const { ref, width, height } = useElementSize();

Definition

function useElementSize<T extends HTMLElement = any>(): {
  MutableRefObject<T>,
  width: number,
  height: number
};
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