Question

How to get value of the get or post variable on page load using JavaScript?

Answer 1

You can’t get the value of POST variables using Javascript, although you can insert it in the document when you process the request on the server.

<script type="text/javascript">
    window.some_variable = '<?=$_POST['some_value']?>'; // That's for a string
</script>

GET variables are available through the window.location.href, and some frameworks even have methods ready to parse them.