React Js reload/refresh image with same URL onClick

React Js reload/refresh image with same URL onClick: In React JS, to reload or refresh an image with the same URL when it's clicked, you can use an onClick event handler. This allows you to update the image without changing its URL, which can improve performance by preventing unnecessary network requests. To achieve this, you can add a unique key attribute to the image element and update it with a new value on each click. This forces React to re-render the image with the same URL, effectively reloading it.




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How can I reload/refresh an image in ReactJS with the same URL onClick?
This React.js code snippet demonstrates how to reload or refresh an image with the same URL when clicked.
The code uses the useState
and useEffect
hooks from React to manage the state of the image.
The imageKey
state variable is used to generate a unique key for the image URL. When the image is clicked, the handleClick
function is called, which increments the imageKey
by 1, triggering a re-render and causing the image URL to change.
The useEffect
hook is used to reset the imageLoaded
state whenever the imageKey
changes.
The image element has a transition effect applied using CSS classes (fade-in
and fade-out
), controlled by the imageLoaded
state.
Additionally, a slight delay is added to the handleImageLoad
function to allow the transition effect to take effect.
React Js reload/refresh image with same URL onClick Example
<script type="text/babel">
const { useState, useEffect } = React;
function App() {
const [imageKey, setImageKey] = useState(0);
const [imageLoaded, setImageLoaded] = useState(false);
useEffect(() => {
setImageLoaded(false); // Reset the imageLoaded state when imageKey changes
}, [imageKey]);
const handleClick = () => {
setImageKey(prevKey => prevKey + 1);
};
const handleImageLoad = () => {
setTimeout(() => {
setImageLoaded(true);
}, 100); // Add a slight delay to allow the transition effect to take effect
};
return (
<div className="container">
<h3>React Js reload/refresh image with same URL onClick</h3>
<img
src={`https://www.sarkarinaukriexams.com/images/editor/1670265927Capture123243243423.PNG?key=${imageKey}`}
alt="Reloadable Image"
className={imageLoaded ? 'fade-in' : 'fade-out'}
onLoad={handleImageLoad}
onClick={handleClick}
/>
</div>
);
}
ReactDOM.render(<App />, document.getElementById("app"));
</script>
Output of React Js reload/refresh image with same URL onClick