Feb 8, 2023 · Conclusion Using the resize observer in React is the same as using it in JavaScript, and you can use the useEffect hook to hook into the React component lifecycle, for instance, to start observing when the component is mounted. This prop is a function that gets called every time Jul 23, 2025 · When to Use addEventListener in React? While React provides a powerful event handling system, there are times when using addEventListener directly can be beneficial or even required: Listening to Global Events: If you need to listen to events on the window or document objects (e. It is similar to the HTML DOM onresize event but uses the camelCase convention in React. We toggle the sider, then the width of the react-grid-layout (div) is changed, but items are not resized. Contribute to bokuweb/re-resizable development by creating an account on GitHub. Apr 10, 2012 · Learn how to resize a div element using JavaScript with examples and solutions provided by the Stack Overflow community. With useRef, I can get the width of my div, but when I resize my page, the width value doesn't update automatically. To re-render a React component when the browser is resized, you can use the window resize event. 5. The Problem now is I can increase the window size and everything works fine.

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