// set image source to a random image
img.src = "https://source.unsplash.com/random";
// get a random image with the size 800x600
img.src = "https://source.unsplash.com/random/800x600"
// Apply search terms
img.src = "https://source.unsplash.com/1600x900/?nature,water"
// More info: https://source.unsplash.com