A common rule for input elements in Javascript is that only the user's operations will start the corresponding events of various elements of the input class, but instead simulate the user's operations using the corresponding methods of JavaScript, and will not trigger the corresponding events.
For example, for the following form:
<form name="form0">
<input type="button" value="button0" name="b0" onClick="alert('Click button 0');">
</form>
When the user calls the click() method of b0 to simulate the user clicking button 0, the button's onClick event will not be triggered, so the corresponding event handling function will not be executed. Only when the user actually clicks the button will the event be triggered and the event handling function will be executed.
In addition: When a set of data of the input element with the same name is submitted to the server, the data format is: name=value,value,...
For example, for the following form:
<form name="form0">
<input type="button" value="button0" name="b0" onClick="alert('Click button 0');">
</form>
When the user calls the click() method of b0 to simulate the user clicking button 0, the button's onClick event will not be triggered, so the corresponding event handling function will not be executed. Only when the user actually clicks the button will the event be triggered and the event handling function will be executed.
In addition: When a set of data of the input element with the same name is submitted to the server, the data format is: name=value,value,...