How to change an attribute?

Question

css

There is an input with type="button", it is necessary that after the end of the check, the type is equal to "submit"

Answer 1

WebGL Fluid Simulation
How to make such an animation?

Answer 2

In general, I figured it out, I used setAttribute(). Who needs it, google about it

Answer 3

<INPUT type="button" id="someButton"/>
if(/*какая-то проверка*/){
document.getElementById("someButton").type = 'submit';
}

However, this is not very normal .. it's better to initialize submit first, and cancel the action via e.preventDefault();