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How do I import a Swift file from another Swift file?
... base module in the test file. In my case, my target is called 'myproject' and I added import myproject and the class was recognised.
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SVN change username
...und a lot of examples on how to change the username for specific revisions and so on.
11 Answers
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pandas: multiple conditions while indexing data frame - unexpected behavior
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As you can see, the AND operator drops every row in which at least one
value equals -1. On the other hand, the OR operator requires both
values to be equal to -1 to drop them.
That's right. Remember that you're writing the condition in te...
What is your single most favorite command-line trick using Bash? [closed]
...es with suffixes quickly:
cp /home/foo/realllylongname.cpp{,-old}
This expands to:
cp /home/foo/realllylongname.cpp /home/foo/realllylongname.cpp-old
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Android. Fragment getActivity() sometimes returns null
...ole error reports sometimes I see reports with NPE issue. I do not understand what is wrong with my code. On emulator and my device application works good without forcecloses, however some users get NullPointerException in fragment class when the getActivity() method is called.
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Two single-column indexes vs one two-column index in MySQL?
I'm faced with the following and I'm not sure what's best practice.
4 Answers
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Export and Import all MySQL databases at one time
...re than 100 MySQL databases. I want to export all of them at the same time and again import all of them into my MySQL server at one time. How can I do that?
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When to use virtual destructors?
I have a solid understanding of most OOP theory but the one thing that confuses me a lot is virtual destructors.
17 Answe...
How do I find the time difference between two datetime objects in python?
...nly holds the difference.
In the example above it is 0 minutes, 8 seconds and 562000 microseconds.
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How to do a regular expression replace in MySQL?
... expression specified by the pattern pat with the replacement string repl, and returns the resulting string. If expr, pat, or repl is NULL, the return value is NULL.
and Regular expression support:
Previously, MySQL used the Henry Spencer regular expression library to support regular expression op...