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How to preview an image before uploading it to server?

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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:
<input type="file" id="imageInput">
  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:
<img id="previewImage" src="#" alt="Image Preview" style="display:none">
  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:
document.querySelector('#imageInput').addEventListener('change', function () {
  previewImage(this);
});
  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:
function previewImage(input) {
  if (input.files && input.files[0]) {
    var reader = new FileReader();
    reader.onload = function (e) {
      document.querySelector('#previewImage').setAttribute('src', e.target.result);
      document.querySelector('#previewImage').style.display = 'block';
    };
    reader.readAsDataURL(input.files[0]);
  }
}

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.

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@abcd 1 days ago

Aquí los que apoyamos a Los del limit desde sus inicios..

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