How To Get Image Size Height Width Using Javascript

Ever wondered how to get the size of an image on a web page using JavaScript? You're in luck! In this guide, I will walk you through the steps to retrieve the height and width of an image using JavaScript. This handy technique can be useful when you need to dynamically adjust elements on your website based on the dimensions of an image.

To begin, you will need a basic understanding of JavaScript and HTML. If you're new to coding, don't worry! This tutorial is beginner-friendly and easy to follow.

First things first, you need to have an image element in your HTML code. Here's an example of how you can structure your HTML:

<title>Get Image Size</title>


    <img id="image" src="your-image.jpg" alt="Your Image">
    
        // JavaScript code will go here

In this snippet, we have an image tag with an `id` of "image" and the source of the image set to "your-image.jpg." Make sure to replace "your-image.jpg" with the actual path to your image file.

Now, let's move on to the JavaScript part. You can access the image element using its `id` attribute and then retrieve its height and width properties. Here's the JavaScript code you need to add:

const image = document.getElementById('image');
    const imgWidth = image.naturalWidth;
    const imgHeight = image.naturalHeight;

    console.log('Image width: ' + imgWidth);
    console.log('Image height: ' + imgHeight);

In this JavaScript snippet, we first select the image element using `document.getElementById('image')`. We then use the `naturalWidth` and `naturalHeight` properties of the image element to get the actual width and height of the image, respectively.

Finally, we use `console.log` to output the dimensions of the image in the console. You can modify this code to suit your specific requirements, such as displaying the image size on the webpage or using the dimensions for other calculations.

And that's it! You've successfully retrieved the height and width of an image using JavaScript. Feel free to experiment with this code and integrate it into your projects to enhance the dynamic display of images on your website.

Congratulations on mastering this technique! Keep practicing and exploring more JavaScript functionalities to level up your coding skills. Happy coding!