event.preventDefault()

jQuery

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event.preventDefault()

Categories: Events > Event Object

event.preventDefault() Returns: undefined

Description: If this method is called, the default action of the event will not be triggered.

  • version added: 1.0event.preventDefault()

    • This method does not accept any arguments.

For example, clicked anchors will not take the browser to a new URL. We can use event.isDefaultPrevented() to determine if this method has been called by an event handler that was triggered by this event.

Example:

Cancel the default action (navigation) of the click.

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                                        <!DOCTYPE html>
                                      
                                    

                                  

                                  

                                    

                                      
                                        <html>
                                      
                                    

                                  

                                  

                                    

                                      
                                        <head>
                                      
                                    

                                  

                                  

                                    

                                        <script src="http://code.jquery.com/jquery-latest.js"></script>
                                    

                                  

                                  

                                    

                                      
                                        </head>
                                      
                                    

                                  

                                  

                                    

                                      
                                        <body>
                                      
                                    

                                  

                                  

                                    

                                       
                                    

                                  

                                  

                                    

                                      <a href="http://jquery.com">default click action is prevented</a>
                                    

                                  

                                  

                                    

                                      
                                        <div id="log">
                                        </div>
                                      
                                    

                                  

                                  

                                    

                                       
                                    

                                  

                                  

                                    

                                      
                                        <script>
                                        
                                      
                                    

                                  

                                  

                                    

                                      $("a").click(function(event) {
                                    

                                  

                                  

                                    

                                        event.preventDefault();
                                    

                                  

                                  

                                    

                                        $('<div/>')
                                    

                                  

                                  

                                    

                                          .append('default ' + event.type + ' prevented')
                                    

                                  

                                  

                                    

                                          .appendTo('#log');
                                    

                                  

                                  

                                    

                                      });
                                    

                                  

                                  

                                    

                                      
                                        </script>
                                      
                                    

                                  

                                  

                                    

                                       
                                    

                                  

                                  

                                    

                                      
                                        </body>
                                      
                                    

                                  

                                  

                                    

                                      
                                        </html>
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