How to swap to text boxes value without taking any variable in java script

Answer 1

Another way:

https://code.sololearn.com/WfoTsGVNRuyT/?ref=app

(a little more verbose, but avoiding intermediate array ;P)

Answer 2

If they both have an id set:

document.getElementById("id1").value = [document.getElementById("id2").value, document.getElementById("id2").value = document.getElementById("id1").value][0];

Otherwise modify it for how you are get the elements.