How can I check if a value is changed on blur event?

Question

Basically I need to check if the value is changed in a textbox on the \'blur\' event so that if the value is not changed, I want to cancel the blur event.

If it possible

Answer 1

Using Jquery events we can do this logic

Step1 : Declare a variable to compare the value

var  lastVal ="";

Step 2: On focus get the last value from form input

  $("#validation-form :input").focus(function () {
                 lastVal = $(this).val();

  });

Step3:On blur compare it

$("#validation-form :input").blur(function () {
                 if (lastVal != $(this).val())
                 alert("changed");
             });