How To Save An Image To Localstorage And Display It On The Next Page

Are you looking to learn how to save an image to your local storage and display it on a different page of your website? Well, you're in luck because I've got you covered with a step-by-step guide to help you achieve just that!

First things first, to save an image to local storage, you'll need to convert the image into a base64 format. This will allow you to store the image data as a string in the browser's local storage. You can achieve this using JavaScript by reading the image file as a data URL.

Let's break it down into easy-to-follow steps:

1. Select the Image:
Start by allowing the user to select an image file either through an upload button or any other method you prefer. Once the user selects the image file, read the file using JavaScript's FileReader API.

2. Convert Image to Base64:
Once the image is read, you can convert it to a base64 string. This can be done by creating a new FileReader object and using the readAsDataURL method to read the image file as a URL.

const fileInput = document.getElementById('file-input');
fileInput.addEventListener('change', function() {
  const file = fileInput.files[0];
  const reader = new FileReader();

  reader.readAsDataURL(file);

  reader.onload = function() {
    const base64Image = reader.result;
    localStorage.setItem('image', base64Image);
  }
});

In the code above, we are listening for changes in the file input element, reading the selected image file, converting it to a base64 string, and then storing it in the local storage with the key 'image'.

3. Display Image on the Next Page:
To display the saved image on a different page, you need to retrieve the image data from local storage and set it as the source of an image element on the next page.

// Next page script
document.addEventListener('DOMContentLoaded', function() {
  const img = document.createElement('img');
  const storedImage = localStorage.getItem('image');
  
  if (storedImage) {
    img.src = storedImage;
    document.body.appendChild(img);
  } else {
    console.error('Image not found in local storage.');
  }
});

In the code snippet above, we are creating an image element, retrieving the stored image data from local storage, setting the image source, and appending it to the document body on the next page.

By following these simple steps, you can save an image to local storage and display it on a different page of your website. This can be a useful feature for various web applications that require image persistence across pages. Happy coding!