naturalWidth vs width

const getNaturalWidth = url => {
    return new Promise((resolve, reject) => {
        const img = new Image();
        img.addEventListener('load', () => {
            resolve(img.naturalWidth);
        });
        img.addEventListener('error', () => reject());
        img.src = url;
    });
};

// Usage
getNaturalWidth('https://path/to/image.png').then((naturalWidth) => {
    ...
});