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copied!<p>As long as your selector is actually working, I see nothing wrong with your code that checks the length of the array. That should do what you want. There are a lot of ways to clean up your code to be simpler and more readable. Here's a cleaned up version with notes about what I cleaned up.</p> <pre><code>var album_text = []; $("input[name='album_text[]']").each(function() { var value = $(this).val(); if (value) { album_text.push(value); } }); if (album_text.length === 0) { $('#error_message').html("Error"); } else { //send data } </code></pre> <p>Some notes on what you were doing and what I changed. </p> <ol> <li><code>$(this)</code> is always a valid jQuery object so there's no reason to ever check <code>if ($(this))</code>. It may not have any DOM objects inside it, but you can check that with <code>$(this).length</code> if you need to, but that is not necessary here because the <code>.each()</code> loop wouldn't run if there were no items so <code>$(this)</code> inside your <code>.each()</code> loop will always be something.</li> <li>It's inefficient to use $(this) multiple times in the same function. Much better to get it once into a local variable and then use it from that local variable.</li> <li>It's recommended to initialize arrays with <code>[]</code> rather than <code>new Array()</code>.</li> <li><code>if (value)</code> when value is expected to be a string will both protect from <code>value == null</code>, <code>value == undefined</code> and <code>value == ""</code> so you don't have to do <code>if (value && (value != ""))</code>. You can just do: <code>if (value)</code> to check for all three empty conditions.</li> <li><code>if (album_text.length === 0)</code> will tell you if the array is empty as long as it is a valid, initialized array (which it is here).</li> </ol> <p>What are you trying to do with this selector <code>$("input[name='album_text[]']")</code>?</p>

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