How do we submit a form using JavaScript?

Answer:

We can write document.forms[0].submit() to submit a form in Javascript.

The submit() method submits the form same as submit button in HTML.It has no return value.Generally a Form is submitted,when we click on Submit Button.

<script type="text/javascript">

function submitform()

{

    document.forms["frm_admin"].submit();

    //or we can also write as

    //document.getElementById("frm_admin").submit();

}

</script>

<input type="button" name="submit" value="Submit" onclick = "submitform();"/>