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jQuery callback for multiple ajax calls

...hree ajax calls in a click event. Each ajax call does a distinct operation and returns back data that is needed for a final callback. The calls themselves are not dependent on one another, they can all go at the same time, however I would like to have a final callback when all three are complete. ...
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Fixed position but relative to container

...on. It is now possible to center content of an dynamic size (horizontally and vertically) with the help of the magic of CSS3 transform. The same principle applies, but instead of using margin to offset your container, you can use translateX(-50%). This doesn't work with the above margin trick bec...
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Why do I get a warning icon when I add a reference to an MEF plugin project?

...test the core class of a plugin by directly referencing the plugin project and instantiating the plugin class. When I create a test Console App project and add a project reference to the plugin project, I get a warning icon (yellow triangle with exclamation mark) next to the reference in the Referen...
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How to filter by IP address in Wireshark?

...ditions: OR condition: (ip.src==192.168.2.25)||(ip.dst==192.168.2.25) AND condition: (ip.src==192.168.2.25) && (ip.dst==74.125.236.16) share | improve this answer | ...
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php var_dump() vs print_r()

What is the difference between var_dump() and print_r() in terms of spitting out an array as string? 12 Answers ...
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Django CharField vs TextField

What is the difference between CharField() and TextField() in Django? The documentation says that CharField() should be used for smaller strings and TextField() should be used for larger strings. Okay, but where is the line drawn between "small" and "large"? What's going on under the ho...
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How to declare and add items to an array in Python?

...To initialize an empty dictionary use {} or dict() Dictionaries have keys and values my_dict = {'key':'value', 'another_key' : 0} To extend a dictionary with the contents of another dictionary you may use the update method my_dict.update({'third_key' : 1}) To remove a value from a dictionary ...
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Best Practice - NSError domains and codes for your own project/app

...ameworks, but what is the best practice regarding setting up error domains and custom error codes for your own project/app ? ...
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Why is creating a Thread said to be expensive?

...a fair bit of work involved: A large block of memory has to be allocated and initialized for the thread stack. System calls need to be made to create / register the native thread with the host OS. Descriptors need to be created, initialized and added to JVM-internal data structures. It is also e...
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How to verify Facebook access token?

... edited Jan 13 '16 at 19:11 AndHeiberg 94911 gold badge99 silver badges2929 bronze badges answered May 29 '13 at 20:07 ...