javascript - upon entering/leaving the page append a string in the url. Is this possible? -


is there way append string in url upon leaving/entering?

say default url www.foo.com

then upon entering/leaving, becomes www.foo.com?param=1 without clicking something?

just using javascript.

any appreciated. thanks!

here 1 possible method that. using jquery, , adds parameter on page entry (on page leave, it's kind of pointless; also, trigger on addition first case well) -

<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script> <script> $( window ).load(function() {         if (! window.location.href.contains("param=0")) {                 window.location.href = window.location.href+"?param=0";         } }); </script>

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