How to preview an image before uploading it to server?

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• How to preview an image before uploading it to server?

How to preview an image before uploading it to server?

Previewing an image before uploading it to the server can be achieved using JavaScript and the HTML5 **FileReader** API. Here's an example:

1. Add an input element for file selection: In your HTML file, add an input element with a type of **file** that allows the user to select an image file:

1. Add an image element for preview: Add an image element to your HTML file that will be used to display the preview of the selected image:

1. Attach a change event to the input element: In your JavaScript file, attach a change event to the input element that triggers when the user selects a file:

1. Implement the **previewImage** function: Implement the **previewImage** function that uses the **FileReader** API to read the selected image file and update the **src** attribute of the image element to display the preview:

By following these steps, you should be able to preview an image before uploading it to the server. The image preview is achieved by using the **FileReader** API to read the contents of the selected image file and updating the **src** attribute of the image element to display the preview.