Fires a callback when the DOM content is loaded or, if it already is, asynchronously with a synthetic DOMContentLoaded event
DOMContentLoaded
An automatic unbinding function to run to deregister the listener upon call
https://mathiasbynens.be/notes/settimeout-onload
Fires a callback when the DOM content is loaded or, if it already is, asynchronously with a synthetic
DOMContentLoadedevent