The action and onsubmit examples of form forms are described in

Action is the property of the form, onsubmit for events, to say the order of execution, personal understanding is onsubmit first, there is a good example below to help everyone better immediately, interested friends do not miss

First: Action is the property of the form, HTML5 has defined it as a required property value, OnSubmit is an event, and a function validation is performed by <input type= "Submit"/> commit.

Second: To say the order of execution, personal understanding is onsubmit First, verify, verify return False, you cannot reach the action= "url" address. If true is returned or no return value is, then the URL address is passed and turned.

Copy CodeThe code is as follows:
<span style= "font-size:14px" > Function check () {
var otext = document.getElementById ("in"). Value;
alert (Otext);
if (Otext = = "false") {
return false;
}
else {
return true;}
}</span>

Copy CodeThe code is as follows:
<span style= "font-size:14px" > <form action= "table1.html" onsubmit= "return check ();" >
<div><input type= "text" id= "in"/><input type= "Submit" value= "Submit"/></div>
</form></span>
Onsubmit= "return fun" here is the return must be written, do not write? Do not write you can try!!!

In summary: OnSubmit is the verification that the action is the link address after the jump.

The action and onsubmit examples of form forms are described in