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What is the equivalent of isset($_POST['name']) in javascript?


Can try something like below

var post_val = <?=
json_encode($_POST) ?>;
if (typeof post_val['2'] == 'undefined') {
   document.getElementById("4").disabled = true;
 }

Categories : Javascript

Related to : What is the equivalent of isset($_POST['name']) in javascript?
C# Dictionary equivalent in JavaScript
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PHP equivalent of JavaScript bind
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javascript equivalent to python's dictionary.get
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package.json (javascript npm) or requirements.txt (python pip) equivalent for ruby
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Laravel How to Isset _GET
This is Laravel equivalent (see http://laravel.com/docs/4.2/requests): if (Input::has('submit')) { $location = Input::get('city'); } But as Lalit Sharma says, you should maybe always set $location even if you have not "submit" in GET: $location = Input::get('city', null); null is the default value so you can ommit it or use any other value: $location = Input::get('city', 'Reykjavik');

Categories : PHP
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