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How to Update Multiple Array Elements in mongodb
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Read the document, do the edits
manually and save it replacing the
older one (check "Update if
Current" if you want to ensure
atomic updates)
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How do I assign a port mapping to an existing Docker container?
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worked for me, just one thing if using docker app on mac, follow instructions here to get to /var/lib/docker/containers folder: stackoverflow.com/a/41226917/2048266, basically run screen ~/Library/Containers/com.docker.docker/Data/com.docker.dri...
Unit Testing C Code [closed]
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One unit testing framework in C is Check; a list of unit testing frameworks in C can be found here and is reproduced below. Depending on how many standard library functions your runtime has, you may or not be able to use one...
C# Java HashMap equivalent
Coming from a Java world into a C# one is there a HashMap equivalent? If not what would you recommend?
7 Answers
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How do I use itertools.groupby()?
... itertools usually clicks for me, but I also had a 'block' for this one. I appreciated your examples-- far clearer than docs. I think itertools tend to either click or not, and are much easier to grasp if you happen to have hit similar problems. Haven't needed this one in the wild yet.
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How to pass a single object[] to a params object[]
...me used to in other languages. params could have been made to only accept one form, and a spread like feature could be added that would benefit the entire language, not just this case. for example, we could force all param calls to be Foo(obj[0], obj[1]), and then have a separate spread operator a...
Create a string of variable length, filled with a repeated character
So, my question has been asked by someone else in it's Java form here: Java - Create a new String instance with specified length and filled with specific character. Best solution?
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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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What are the differences between git branch, fork, fetch, merge, rebase and clone?
I want to understand the difference between a branch, a fork and a clone in Git?
5 Answers
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