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How do I integrate Ajax with Django applications?

...ction, going to 127.0.0.1:8000/home will return the index.html and replace all the variables as asked (you probably know all this by now). Now let's talk about AJAX. AJAX calls are client-side code that does asynchronous requests. That sounds complicated, but it simply means it does a request for y...
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Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=

...: SET @rUsername = ‘aname’ COLLATE utf8_unicode_ci; -- COLLATE added CALL updateProductUsers(@rUsername, @rProductID, @rPerm); Option 2: add COLLATE to the WHERE clause: CREATE PROCEDURE updateProductUsers( IN rUsername VARCHAR(24), IN rProductID INT UNSIGNED, IN rPerm VARCHAR(16...
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The simplest way to resize an UIImage?

...e of the resizing options. Or you can use this utility method, if you actually need to resize an image: + (UIImage *)imageWithImage:(UIImage *)image scaledToSize:(CGSize)newSize { //UIGraphicsBeginImageContext(newSize); // In next line, pass 0.0 to use the current device's pixel scaling fa...
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Is there a way to make mv create the directory to be moved to if it doesn't exist?

...ectories don't exist, is there some way to have those directories automatically created, so that you would only have to type ...
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How does C compute sin() and other math functions?

...on in C, contributed by IBM. Since October 2011, this is the code that actually runs when you call sin() on a typical x86-64 Linux system. It is apparently faster than the fsin assembly instruction. Source code: sysdeps/ieee754/dbl-64/s_sin.c, look for __sin (double x). This code is very complex. N...
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How to set JAVA_HOME in Linux for all users

... For all users, I would recommend placing the following line in /etc/profile export JAVA_HOME=$(readlink -f /usr/bin/javac | sed "s:/bin/javac::") This will update dynamically and works well with the alternatives system. Do not...
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powershell 2.0 try catch how to access the exception

...tch [Net.WebException] { $_ | fl * -Force } I think it will give you all the info you need. My rule: if there is some data that is not displayed, try to use -force. share | improve this answe...
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What exactly are late static bindings in PHP?

...s in the PHP manual. However, I'll try to give you a quick summary. Basically, it boils down to the fact that the self keyword does not follow the same rules of inheritance. self always resolves to the class in which it is used. This means that if you make a method in a parent class and call it ...
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Convert JavaScript string in dot notation into an object reference

...k themselves the question "why am I doing this?" It is of course generally fine to do this if your use case is small and you will not run into performance issues, AND you won't need to build upon your abstraction to make it more complicated later. In fact, if this will reduce code complexity an...
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Mimicking sets in JavaScript?

...the list is a little safer with this: if (Object.prototype.hasOwnProperty.call(obj, A)) // put code here } because of potential conflict between built-in methods and/or properties on the base Object like the constructor property. Sidebar on ES6: The current working version of ECMAScript 6 or s...