JS how to increase a value by x onclick

Question

Example;
div width = 10px;
When u click on this button, the div width increases by 5 (15), if u click it again it increases by 5 again (20)...

I'm just experimenting on this code:
https://code.sololearn.com/WVMu0BA0xtR5/?ref=app

Answer 1

Rather than increasing the value of wi within the assignment of the new width, you could just do the following:
wi = 50;
function width(){
wi += 10;
pap.style.width = wi+"px";
}