Implementing form submission verification based on jQuery_jquery

html form code:

Copy code The code is as follows:

                                                                                                             Username:
             
                                                                                                                                                                                                                                    Email:
              
                                                                                                                                                                                                                     Profile:
                                          
                                                                                                                                                                                             
                                          
                                                                                       

jQuery code:




Copy code

The code is as follows:

             $(function(){
                $("form :input.required").each(function(){
              var $required = $("*");
//$(this).parent().append($required); //Append to the document
                      $(this).parent().prepend($required);
              });
                 $('form :input').blur(function(){
              var $parent = $(this).parent();
If($(this).is('#username')){
If(this.value==""||this.value.length<6){
                                                                                                      var errorMsg = 'Please enter a username of at least 6 characters';
                                     $parent.append('' errorMsg '');
                           }else{
                                                                                                                                                                                                                                                                        var okMsg = 'Correct input';
                                     $parent.append('' okMsg '');
                                                                                                                                                                                                                              If($(this).is('#email')){
if(this.value==""||(this.value!=""
&&!/. @. .[a-zA-Z]{2,4}$/.test(this.value
))){                                 var errorMsg = 'Please enter the correct email address'; $parent.append('' errorMsg '');
                                                                                                                                                                                                                                                                                                                                                                                                                                          var okMsg = 'Correct input';
                                       $parent.append('' okMsg '');
                                                                                                                                                                                                                                                                                                 });
                $("form :input").focus(function(){
              var $parent = $(this).parent();
                       $parent.find(".formtips").remove();
              });
                 $("#send").click(function(){
              var $parent = $(this).parent().parent();
                     $parent.find(".formtips").remove();
                      $("form .required:input").trigger('blur');
              var numError = $('form .onError').length;
If(numError){
                          return false;
                                                                                                  });
                 $("#res").click(function(){
              var $parent = $(this).parent().parent();
                       $parent.find(".formtips").remove();
              });
        });

The code is very simple and easy to understand. Friends, just take it and use it. I won’t explain it in detail here.