How to set multiple extensions?

[rybarova]

How I can set multiple extensions for convert? I have multiple files in folder and I need convert .jpg|.png|.jpeg extensions into .webp

I tried that via regex, but that does not work. webp.cwebp(fileName + "/.+?\.(jpg|png|jpeg)/g",.... Is there another solution how to do this?

My full code is here ↓↓↓ :

const fs = require('fs');

const folder = './';

fs.readdir(folder, (err, files) => {

    files.forEach(file => {

        const fileName = file.split('.')[0];

        const result = webp.cwebp(fileName + ".jpg", fileName + ".webp", "-q 70", logging = "-v");
        result.then((response) => {
            console.log(response);
        });

    });
});