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How do I test for an empty JavaScript object?

... community wiki 14 revs, 14 users 53%Adam Zerner ...
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Insert auto increment primary key to existing table

... mechanics are quite different. You'll find suggestions here stackoverflow.com/questions/946011/sqlite-add-primary-key – Michael Berkowski Sep 3 '15 at 13:12 1 ...
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How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the oth

...RSA implementation... <?php include('Crypt/RSA.php'); $rsa = new Crypt_RSA(); $rsa->loadKey('-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA61BjmfXGEvWmegnBGSuS +rU9soUg2FnODva32D1AqhwdziwHINFaD1MVlcrYG6XRKfkcxnaXGfFDWHLEvNBS EVCgJjtHAGZIm5GL/KA86KDp/CwDFMSwluowcXwDwo...
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What does enctype='multipart/form-data' mean?

...ion/json, but that has been abandoned. (Other encodings are possible with HTTP requests generated using other means than an HTML form submission. JSON is a common format for use with web services and some still use SOAP.) The specifics of the formats don't matter to most developers. The important ...
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How do you disable the unused variable warnings coming out of gcc in 3rd party code I do not wish to

...ut the stuff you have no control over. For example, instead of -IC:\\boost_1_52_0, say -isystem C:\\boost_1_52_0. Hope it helps. Good Luck! share | improve this answer | fo...
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What does the PHP error message “Notice: Use of undefined constant” mean?

... You should quote your array keys: $department = mysql_real_escape_string($_POST['department']); $name = mysql_real_escape_string($_POST['name']); $email = mysql_real_escape_string($_POST['email']); $message = mysql_real_escape_string($_POST['message']); As is, it was looking ...
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How do I position one image on top of another in HTML?

...green solid; } <div class="parent"> <img class="image1" src="https://placehold.it/50" /> <img class="image2" src="https://placehold.it/100" /> </div> As the simplest solution. That is: Create a relative div that is placed in the flow of the page; place the b...
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How to build & install GLFW 3 and use it in a Linux project

... version available in the first line): version="3.2.1" && \ wget "https://github.com/glfw/glfw/releases/download/${version}/glfw-${version}.zip" && \ unzip glfw-${version}.zip && \ cd glfw-${version} && \ sudo apt-get install cmake xorg-dev libglu1-mesa-dev &&amp...
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When should iteritems() be used instead of items()?

... more like a set (which you'd expect from a dict). Simple example: common_keys = list(dict_a.viewkeys() & dict_b.viewkeys()) Will give you a list of the common keys, but again, in Python 3.x - just use .keys() instead. Python 3.x has generally been made to be more "lazy" - i.e. map is now e...
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Checking for an empty field with MySQL

...%\ ' Make sure that there's a space after the backslash. More info here: http://dev.mysql.com/doc/refman/5.0/en/string-comparison-functions.html share | improve this answer | ...