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python multithreading wait till all threads finished

... okay, i see. now i understand, was a bit confused about it but i think i understand, join sort of attaches the current process to the thread and waits till its done, and if t2 finishs before t1 then when t1 is done it will check for t2 be...
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Database development mistakes made by application developers [closed]

...highly flexible data model. 7. Not sanitizing input This is a huge one. Now I like PHP but if you don't know what you're doing it's really easy to create sites vulnerable to attack. Nothing sums it up better than the story of little Bobby Tables. Data provided by the user by way of URLs, form d...
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Deserializing JSON data to C# using JSON.NET

... You still have 'magic strings', they now are just hidden by the use of dynamic! – Ian Ringrose Sep 30 '15 at 9:02 ...
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Android Studio: Android Manifest doesn't exists or has incorrect root tag

...on moved under my .../lib directory. I moved it out of the /lib directory. Now both /lib and /src are at the same level. After a couple of clean rebuilds and restarts of Android studio everything is back to normal. My emulator started up fine. You might want to check your directory structure. Compa...
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Performance of Find() vs. FirstOrDefault() [duplicate]

... It's now 100% obvious what is the only difference between them, I was hoping to see something else, like more tricky to identify. It's always interesting to see what's going on under the hood of .net framework. thanks! ...
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string.IsNullOrEmpty(string) vs. string.IsNullOrWhiteSpace(string)

... Now I'm confused: "IsNullOrWhiteSpace is a convenience method that is similar to the following code, except that it offers superior performance" from here: msdn.microsoft.com/en-us/library/… – robasta ...
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Why is it slower to iterate over a small string than a small list?

...kes sense as Python 3 changed comprehensions to have safer scoping. Well, now improve the benchmark (I'm just removing overhead that isn't iteration). This removes the building of the iterable by pre-assigning it: >>> python3 -m timeit -s 'iterable = "abc"' '[x for x in iterable...
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How to define an empty object in PHP

...e creating a new one. The problem that needs fixing is that people should know what stdClass does. – Pacerier Mar 25 '15 at 5:04 2 ...
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Does .NET provide an easy way convert bytes to KB, MB, GB, etc.?

... Both examples now use floating point division so there should be much less concern about rounding errors. – JLRishe Mar 11 '14 at 6:57 ...
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how to convert java string to Date object [duplicate]

... That works for now, but the Date(String) constructor is deprecated and may be removed completely in the future. – L S Jun 4 '13 at 20:45 ...