javascript - Hide input empty input upon Submit -


i trying hide empty fields upon submit $_get.

my code looks it's not working. logic of great. 

<script> $(submit).click(function(){ if(input.value.length == 0)     input.style.visibility = "hidden";     }); </script>

edit: here button submits form -

<input name="savebtn" type="submit" id="savebtn"  formaction="update1profile.php?id="<?php echo htmlentities($_server["php_self"]) ?> <?php echo $_get['source_id'] ?>" formmethod="get" value="save">

well code giving errors in browser console; it's idea check there first.

you need find <input> elements, , mentioning word "input" won't that. same goes "submit" element, whatever is. might like:

$('form').submit(function() {   $(this).find('input').filter(function() { return this.value == ''; }).css('visibility', 'hidden'); });

edit — in comment below, op mentions wants avoid having empty inputs submitted. if that's case, making them invisible not that. instead (or additionally), it's necessary mark fields "disabled":

$('form').submit(function() {   $(this).find('input')     .filter(function() { return this.value == ''; })     .prop('disabled', true)     .css('visibility', 'hidden'); });

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