Confirm Password with jQuery Validate

I'm trying to use jQuery validate plugin to confirm my password entry.

However, I don't want it to be a required field.

Just IF a user wants to change the password, they would need to confirm it.

If not, both fields shouldn't be validated.

jQuery('.validatedForm').validate({
    rules: {
        password: {
            required: true,
            minlength: 5
        },
        password_confirm: {
            required: true,
            minlength: 5,
            equalTo: "#password"
        }
    }
}); 

This is working perfectly, but again, both fields are required.

I would like to have this optional, in case someone just wants to change for instance their email or username and leave the password alone.

Remove the required: true rule.

Demo: Fiddle

jQuery('.validatedForm').validate({
			rules : {
				password : {
					minlength : 5
				},
				password_confirm : {
					minlength : 5,
					equalTo : "#password"
				}
			}

Just a quick chime in here to hopefully help others... Especially with the newer version (since this is 2 years old)...

Instead of having some static fields defined in JS, you can also use the data-rule-* attributes. You can use built-in rules as well as custom rules.

See http://jqueryvalidation.org/documentation/#link-list-of-built-in-validation-methods for built-in rules.

Example:

<p><label>Email: <input type="text" name="email" id="email" data-rule-email="true" required></label></p>
<p><label>Confirm Email: <input type="text" name="email" id="email_confirm" data-rule-email="true" data-rule-equalTo="#email" required></label></p>

Note the data-rule-* attributes.

It works if id value and name value are different:

<input type="password" class="form-control"name="password" id="mainpassword">
password: {     required: true,     } , 
cpassword: {required: true, equalTo: '#mainpassword' },

jQuery('.validatedForm').validate({
        rules : {
            password : {
                minlength : 5
            },
            password_confirm : {
                minlength : 5,
                equalTo : '[name="password"]'
            }
        }

In general, you will not use id="password" like this. So, you can use [name="password"] instead of "#password"

I'm implementing it in Play Framework and for me it worked like this:

1. Notice that I used data-rule-equalTo in input tag for the id inputPassword1. The code section of userform in my Modal:

   @Messages("authentication.password")
   @Messages("authentication.password2")

2)Since I used validator within a Modal

$(document).on("click", ".createUserModal", function () {
       $(this).find('#userform').validate({
           rules: {
               firstName: "required",
               lastName: "required",
               nationalId: {
                   required: true,
                   digits:true
               },
               email: {
                   required: true,
                   email: true
               },
               optradio: "required",
               password :{
                   required: true,
                   minlength: 5
               },
               password2: {
                   required: true
               }
           },
           highlight: function (element) {
               $(element).parent().addClass('error')
           },
           unhighlight: function (element) {
               $(element).parent().removeClass('error')
           },
           onsubmit: true
       });

   });

Hope it helps someone :).

<script>
   
     $(document).ready(function(){            
   
     });

     function login() {
        
         var password = $("#psw").val()
         var password1 = $("#psw1").val()
         var pswlen = password.length;
         if (pswlen < 8) {
             alert('minmum  8 characters needed')
         }
         else {

            if (password == password1) {
                 alert('continue');
                 window.location.replace("http://stackoverflow.com");
             }
             else {
                 alert('failed');
             }

         }

     }
    
</script>