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getApplication() vs. getApplicationContext()
...estion. I think it's mainly a semantic meaning, and may also be due to historical reasons.
Although in current Android Activity and Service implementations, getApplication() and getApplicationContext() return the same object, there is no guarantee that this will always be the case (for example, in ...
Is file append atomic in UNIX?
In general, what can we take for granted when we append to a file in UNIX from multiple processes? Is it possible to lose data (one process overwriting the other's changes)? Is it possible for data to get mangled? (For example, each process is appending one line per append to a log file, is it po...
add a string prefix to each value in a string column using Pandas
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thank you. if of interest, dataframe indexes also support such string manipulations.
– tagoma
Jul 10 '17 at 21:30
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How do I check if there are duplicates in a flat list?
For example, given the list ['one', 'two', 'one'] , the algorithm should return True , whereas given ['one', 'two', 'three'] it should return False .
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Checking for empty queryset in Django
What is the recommended idiom for checking whether a query returned any results?
Example:
7 Answers
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Difference between CLOB and BLOB from DB2 and Oracle Perspective?
I have been pretty much fascinated by these two data types. According to Oracle Docs , they are presented as follows :
3 A...
Difference between app.use and app.get in express.js
...een app.use and app.get. It seems like you can use both of them to send information. For example:
6 Answers
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Which is the best Linux C/C++ debugger (or front-end to gdb) to help teaching programming? [closed]
I teach a sort of "lite" C++ programming course to novices ("lite" meaning no pointers, no classes, just plain old C, plus references and STL string and vectors). Students have no previous experience in programming, so I believe that using an interactive debugger would help them understand program f...
Auto reloading a Sails.js app on code changes?
Currently is seems that for any code change in a sails.js app you have to manually stop the sails server and run sails lift again before you can see the changes.
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Choosing between std::map and std::unordered_map [duplicate]
Now that std has a real hash map in unordered_map , why (or when) would I still want to use the good old map over unordered_map on systems where it actually exists? Are there any obvious situations that I cannot immediately see?
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