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How to cherry-pick multiple commits
I have two branches. Commit a is the head of one, while the other has b , c , d , e and f on top of a . I want to move c , d , e and f to first branch without commit b . Using cherry pick it is easy: checkout first branch cherry-pick one by one c to f and rebase second branch on...
Unstaged changes left after git reset --hard
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This works, but I do not exactly understand why. Anyone care to explain each command?
– Edwin Stoteler
Mar 20 '15 at 14:04
19
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Convert NSArray to NSString in Objective-C
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NSString * result = [[array valueForKey:@"description"] componentsJoinedByString:@""];
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Extracting the last n characters from a ruby string
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Here you have a one liner, you can put a number greater than the size of the string:
"123".split(//).last(5).to_s
For ruby 1.9+
"123".split(//).last(5).join("").to_s
For ruby 2.0+, join returns a string
"123".split(//).last(5).join
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How to set timeout on python's socket recv method?
... never block indefinitely. select() can also be used to wait on more than one socket at a time.
import select
mysocket.setblocking(0)
ready = select.select([mysocket], [], [], timeout_in_seconds)
if ready[0]:
data = mysocket.recv(4096)
If you have a lot of open file descriptors, poll() is ...
How to find if a given key exists in a C++ std::map
...ere is only a single key in a std::map. So count will either be 0 or 1. Is one more efficient than the other?
– goelakash
Jul 17 '15 at 7:38
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How can I correctly prefix a word with “a” and “an”?
...hought:
it's an unanticipated result but it's a unanimous vote
it's an honest decision but a honeysuckle shrub
Symbols: It's an 0800 number, or an ∞ of oregano.
Acronyms: It's a NASA scientist, but an NSA analyst; a FIAT car but an FAA policy.
...which just goes to underline that a rule based...
How do I edit an existing tag message in git?
... `# get the second to last date, as the last one is the commit date` \
> git tag tag1 tag1^{} -a -f # finally, update the tag message, but save the date of the old one
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> git rev-list --objects -g --no-walk --all
6bdcc34...
What is a coroutine?
...ollaborative: at any given time, a program with coroutines is running only one of its coroutines, and this running coroutine suspends its execution only when it explicitly requests to be suspended.
So the point is: Coroutines are "collaborative". Even in multi-core system, there is only one coro...
kill -3 to get java thread dump
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When using kill -3 one should see the thread dump in the standard output. Most of the application servers write the standard output to a separate file. You should find it there when using kill -3. There are multiple ways of getting thread dumps...