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Swap key with value JSON

... jPO's answer shows that jPO's for-loop outperforms grappeq's map approach by almost 3 to 1 (at least on my browser). – Michael Hays Feb 20 '19 at 17:45 ...
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Convert a list to a string in C#

... You can replace "," with what you want to split the elements in the list by. Edit: As mention in the comments you could also do string combindedString = string.Join( ",", myList); Reference: Join<T>(String, IEnumerable<T>) Concatenates the members of a collection, using the speci...
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Swift performSelector:withObject:afterDelay: is unavailable [duplicate]

... Swift is statically typed so the performSelector: methods are to fall by the wayside. Instead, use GCD to dispatch a suitable block to the relevant queue — in this case it'll presumably be the main queue since it looks like you're doing UIKit work. EDIT: the relevant performSelector: is als...
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Difference between Convert.ToString() and .ToString()

... @Roshe Yeah, I just got bit by this. Convert.ToString(string value) returns null if the argument is null. Convert.ToString(object value) returns String.Empty if the argument is null. – Tim Goodman Aug 29 '13 at 1...
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Show diff between commits

...nstead of a commit range). Since the OP want to see the changes introduced by k73ud, he/she needs to difference between the first parent commit of k73ud: k73ud^ (or k73ud^1 or k73ud~). That way, the diff results will include changes since k73ud parent (meaning including changes from k73ud itself), ...
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How do I make a branch point at a specific commit? [duplicate]

...nts has the potential to leave behind commits that are no longer reachable by any branches, and thus become object to garbage collection. So, think before you type git branch -f! This method is better than the git reset --hard approach, as it does not destroy anything in the index or working dire...
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Maven package/install without test (skip tests)

... @EmmanuelBourg That can be remedied by following directions in this example maven.apache.org/plugins/maven-surefire-plugin/examples/… – smp7d Sep 18 '12 at 15:42 ...
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Android View.getDrawingCache returns null, only null

...cause I have a phone with very limited memory resources). The answer below by cV2 worked fine for me. – Simon Forsberg Jul 23 '13 at 23:16 ...
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Git error on commit after merge - fatal: cannot do a partial commit during a merge

...ere is some kind of inconsistency in the staging area that can't be solved by git add, which makes git commit fail. Adding -i would tell git to add and commit at the same time. I'm still not sure why but it seems to make sense. – JonSlowCN Aug 21 '15 at 9:13 ...
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How to perform element-wise multiplication of two lists?

... to perform an element wise multiplication, to multiply two lists together by value in Python, like we can do it in Matlab. ...