Question 186374 in Javascript Question posted in
A very good W3school tutorial can be found here.

How to get the aspect ratio of an image using JavaScript

I need to get the original aspect ratio of the image
enter image description here

Expect to get the original aspect ratio of the image

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2

Answers


  1. 0

    Try this :

    const aspectRatio = yourImage.naturalWidth / yourImage.naturalHeight;

    console.log(‘Aspect ratio:’, aspectRatio);

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  2. 0

    Pass the "getAspectRatio()" function an "img.src" parameter.
    The actual dimensions of the picture will be taken, after which a check will be made whether the picture is in portrait or landscape format.
    As a result, the function returns aspect ratio of the image.

    function getAspectRatio(image) {

    const w = image.naturalWidth;
    const h = image.naturalHeight;

    let aspectRatio;

    if (w > h) {
        aspectRatio = w / h;
    } else {
        aspectRatio = h / w;
    }

    return aspectRatio;

};
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