onsubmit()

Hi,

i saw a code that was written like this:

Does this mean that the form is not submitted since it is "return false"?

 

Yep, it means just that. It's commonly used when you want to verify data before submitting the form. I.e. you have a form with a function that executes onsubmit:

<form onsubmit='return verifyFormData()'>

Code (markup):

And the verification function should be something like this:

function verifyFormData()
{
   if( ... ) //here are the data verifications, i.e. numeric values, alphanumeric values, etc.
   {
      //if they all match your requirements - submit the form
      return true;
   }
   else  //something is not ok - warn the user to correct the wrong values and don't submit the form
   {
      alert('Data verification failed');
      return false;
   }
}

Code (markup):