Preloading images with JavaScript

Question

Is the function I wrote below enough to preload images in most, if not all, browsers commonly used today?

function preloadImage(url)
{
    var img=new Image(         


        

Answer 1

const preloadImage = src => 
  new Promise(r => {
    const image = new Image()
    image.onload = r
    image.onerror = r
    image.src = src
  })


// Preload an image
await preloadImage('https://picsum.photos/100/100')

// Preload a bunch of images in parallel 
await Promise.all(images.map(x => preloadImage(x.src)))