Javascript / Jquery：在表单提交完成之前，如何防止执行其他代码

Question

document.myForm.submit();
window.dialogArguments.close();

dialogArguments.close() line is getting executed first and document.myForm.submit() line is getting executed last.

How can we stop the interpeter to execute other lines of code until substitution done?

Answer 1

You should not prevent any part of code. Just need put your code in right place.

For example:

function deleteDocument(form) {
    if (confirm("Do you really want to delete the document?")) 
       form.submit();
       window.dialogArguments.close();
   }

<form action="deleteDocument.php" onsubmit="deleteDocument(this);return false;">

</form>

Answer 2

Try like

document.myForm.submit();
setTimeout(
    function() {
      window.dialogArguments.close();    },
 500);

Set time out for delay execute for function. or Use as callback function to window.dialogArguments.close() ;

Answer 3

   <form onsubmit="do_something()">

     function do_something(){
      // Do your stuff here
     }

If you put return like the code below, you can prevent the form submission by returning false from the do_something() function.

    <form onsubmit="return do_something()">

     function do_something(){
    // Do your stuff here
    return true; // submit the form

    return false; // don't submit the form
   }