How to prevent pasting into a text field using jQuery.

prevent-pasting-into-text-input.js

$(document).ready(function() {
  $('#elementId')
    .keypress(function(e) {
        // Prevent users from being able to type into the field.
        e.preventDefault();
    })
    .keydown(function (e) {
        // Prevent users from being able to type into the field.
        e.preventDefault();
    })
    .keyup(function (e) {
        // Prevent users from being able to type into the field.
        e.preventDefault();
    })
    .bind('contextmenu', function(e) {
        // Prevent users from being able to right-click and paste into the field.
        e.preventDefault();
    })
  ;
})