is Javascript able to unload an image from an HTML page?

Question

I would like to know if it is possible to unload an image from an HTML page and free its memory occupation with some Javascript instructions. Say an image is already display

Answer 1

The comments on your question are correct, you can remove it from the DOM, but the browser will clear it from memory when it decides it's good and ready.

To clear it from the DOM, you would do something like this:

var badImage = document.querySelector("img#idOfImage"); 
//or "img[href='nameofimagefile.jpeg']" 
//whatever you need to do to get the right element
//then, remove it:

badImage.parentElement.removeChild(badImage);