Question

Actually I am new to jquery as well as web designing

Now I need some piece of code which will invoke after blur event on a text box.

I need jquery code for validating a name field in the html form.

Answer 1

Make sure you add a latest version of jQuery….
Here is a sample for validating for not null.

    $(document).ready(function() {
        $('input#fname').on('blur', function() {
            if( $(this).val() == ''  || $(this).val() == "null") {
                // Your code to handle error
            } else {
                            return true;
                    }
        })
    });