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How do I convert an interval into a number of hours with postgres?
...s interval, and extract result is integer, not float). So. Autocast/Floor done.
– Offenso
Aug 12 '15 at 13:24
19
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Convert Mercurial project to Git [duplicate]
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You can try using fast-export:
cd ~
git clone https://github.com/frej/fast-export.git
git init git_repo
cd git_repo
~/fast-export/hg-fast-export.sh -r /path/to/old/mercurial_repo
git checkout HEAD
Also have a look at this SO question.
If you're using Mercurial v...
What happens when there's insufficient memory to throw an OutOfMemoryError?
...d Feb 13 '12 at 17:28
Ilmari KaronenIlmari Karonen
43k88 gold badges7979 silver badges135135 bronze badges
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CSS selector for first element with class
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This is one of the most well-known examples of authors misunderstanding how :first-child works. Introduced in CSS2, the :first-child pseudo-class represents the very first child of its parent. That's it. There's a very common misconc...
How to cast List to List
...pointed. -- Meanwhile, .NET has two separate extension methods for this -- one called .Cast<T>() and one called .OfType<T>(). The former performs a cast on each element (throwing the desired exceptions) while the latter filters out elements that can't be cast (so you would pick one depe...
How to get a value from a cell of a dataframe?
I have constructed a condition that extract exactly one row from my data frame:
11 Answers
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How can I merge two commits into one if I already started rebase?
...arted with
$ git rebase --abort
Say your history is
$ git log --pretty=oneline
a931ac7c808e2471b22b5bd20f0cad046b1c5d0d c
b76d157d507e819d7511132bdb5a80dd421d854f b
df239176e1a2ffac927d8b496ea00d5488481db5 a
That is, a was the first commit, then b, and finally c. After committing c we decide t...
IEnumerable vs List - What to Use? How do they work?
...3 types. stackoverflow.com/questions/2876616/…
– Bronek
Jan 6 '14 at 20:55
5
@Bronek The answer...
Convert line-endings for whole directory tree (Git)
...straight forward process.
dos2unix filename
Thanks to toolbear, here is a one-liner that recursively replaces line endings and properly handles whitespace, quotes, and shell meta chars.
find . -type f -exec dos2unix {} \;
If you're using dos2unix 6.0 binary files will be ignored.
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What are the effects of exceptions on performance in Java?
...ns for try at all in general - everything that needs to happen is already done when the class is loaded by the VM) and it makes throw not quite as slow. I don't know which JVM uses this new, better technique...
...but are you writing in Java so your code later on only runs on one JVM on one specif...