How to create an array of images in JavaScript?

Question

JavaScript

I'm making a javascript game. You need to create an array of helicopters at the top of the canvas. I create an array which I call "enemy". I enter x, y, offset, margin. It turns out that only one picture is addressed. Tell me how to make 10 enemies float at the top, given by pictures. If there is any other way, please point it out. Thanks in advance.