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How do you check if a certain index exists in a table?
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AdaTheDevAdaTheDev
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Getting visitors country from their IP
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Actually, you can call http://api.hostip.info/?ip=123.125.114.144 to get the information, which is presented in XML.
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How do I trigger the success callback on a model.save()?
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The first argument of save is the attributes to save on the model:
this.model.save( {att1 : "...
Finding the author of a line of code in Mercurial
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On the command-line, you'd want to use hg annotate -u (-u can be combined with -n to get the l...
How can I remove a specific item from an array?
...ages (a lot of them older than JavaScript.)
– default123
Sep 10 at 0:16
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How do I replace a git submodule with another repo?
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If the location (URL) of the submodule has changed, then you can simply:
Modify your .gitmod...
使用App Inventor扩展实现多点触控：Scale Detector · App Inventor 2 中文网
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How do I return rows with a specific value first?
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For Postgres, this worked for me: ORDER BY id = 123 DESC, name ASC
– user1032752
Oct 6 '16 at 21:27
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Where and why do I have to put the “template” and “typename” keywords?
...}; /* (C) --> */ f_tmpl<X> ();
struct Y { static int const foo = 123; }; /* (D) --> */ f_tmpl<Y> ();
The two different scenarios:
If we instantiate the function-template with type X, as in (C), we will have a declaration of a pointer-to int named x, but;
if we instantiate the ...
How to enable external request in IIS Express?
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In case of a 503 Error, see this: stackoverflow.com/questions/5442551/…
– deerchao
Oct 12 '12 at ...