How to create a JavaScript callback for knowing when an image is loaded?

How to create a JavaScript callback for knowing when an image is loaded?

javascript image callback loading

javascript

JavaScript Loading Screen while page loads

javascript jquery html css loading

javascript

Dot dotdot dotdotdot as loading?

javascript css animation loading

javascript

Display a loading bar before the entire page is loaded

javascript jquery progress-bar loading

javascript

Get image dimensions with Javascript before image has fully loaded

javascript image loading dimensions

javascript

Dynamically loading css file using javascript with callback without jQuery

javascript css callback loading

javascript

How to detect when a image is loaded, that is provided via props, and change state in React?

javascript image reactjs loading state

javascript

How to display a loading screen while site content loads

javascript html css loading pageload

javascript

Angular js - show/hide loading gif every new route

javascript angularjs toggle loading routes

javascript

Are Modern browsers loading scripts parallel or sequentially?

javascript loading modernizr

javascript

preload with percentage - javascript/jquery

javascript jquery loading progress

javascript