May 26, 2020

How to Download Image on Button Click Using Javascript

By Krishnaa JavaScript Questions 0 Comments

How to Download Image on Button Click Using Javascript

In this video tutorial, you will learn how to download image on button click using javascript.

HTML:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    
    <div>
       <img src="https://i.imgur.com/sduLRvf.jpg" alt="">
       <button>Download</button>
    </div>

    <script src="js/FileSaver.min.js"></script>
    <script src="js/script.js"></script>
</body>
</html>

<!DOCTYPE html>

<head>

<title>Document</title>

</head>

<body>

<div>

<button>Download</button>

</div>

</body>

</html>

CSS:

div {
    display: flex;
    flex-direction: column;
    align-items: center;
}

img {
    height: 400px;
    width: 400px;
}

button {
    display: block;
    padding: 10px;
    margin-top: 10px;
}

div {

display: flex;

flex-direction: column;

align-items: center;

}

img {

height: 400px;

width: 400px;

}

button {

display: block;

padding: 10px;

margin-top: 10px;

}

Javascript:

let btnDownload = document.querySelector('button');
let img = document.querySelector('img');


// Must use FileSaver.js 2.0.2 because 2.0.3 has issues.
btnDownload.addEventListener('click', () => {
    let imagePath = img.getAttribute('src');
    let fileName = getFileName(imagePath);
    saveAs(imagePath, fileName);
});

function getFileName(str) {
    return str.substring(str.lastIndexOf('/') + 1)
}