Change the file to which the link will throw me (in html) from the script. Is that possible?

Question

JavaScript

I need that when the condition is met (for example, if ( document.getElementById('pass').value = "123") {
...
}
In place of three dots there should be a code that changes the end address of the link. Please help

Answer 1

if ( document.getElementById('pass').value = "123" ) {
  document.getElementById('link').href = "https://whatever.com" 
}