Disable paste event

DisablePaste.js

//1. Plain JavaScript
document.getElementById("txtPassword").addEventListener("paste", function(e) {
  e.preventDefault();
});

//2. If jQuery is used on the page, it might look like this:
$('#txtPassword').bind("paste", function(e) {
  e.preventDefault();
});

//3. Sometimes, event and function are separate:
document.getElementById("txtPassword").addEventListener("paste", preventPaste);
//...later in the file...
function preventPaste(e) {
  e.preventDefault();
}