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Completion handler for UINavigationController “pushViewController:animated”?
... Looking back at this question, I think in general the concerns mentioned by @MattH. and @LeffelMania do highlight a valid problem with this solution - it ultimately assumes the transaction will be completed after the push is complete, but the framework does not guarantee this behaviour. It is guar...
How to create a fixed-size array of objects
...ant an array of optionals, not an optional array.)
Swift is very explicit by design about requiring that variables be initialized, because assumptions about the content of uninitialized references are one of the ways that programs in C (and some other languages) can become buggy. So, you need to ex...
How to assign the output of a command to a Makefile variable
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Thank you! This helps me bypass "weird bash" in makefile
– Nam G VU
Oct 31 '17 at 7:52
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How to check if all list items have the same value and return it, or return an “otherValue” if they
... : otherValue;
Cleanest way I can think of. You can make it a one-liner by inlining val, but First() would be evaluated n times, doubling execution time.
To incorporate the "empty set" behavior specified in the comments, you simply add one more line before the two above:
if(yyy == null || !yyy...
Can't install Ruby under Lion with RVM – GCC issues
...ral alternative solutions. Try the simple “Edit 3” solution first.
Ruby 1.9.3-p125 and later have official support for clang, so if you are installing such a version you should not need GCC. If you’re installing an older version of Ruby, read on.
To compile Ruby with GCC, you need a non-LLV...
Delete all local git branches
...ranch --merged | grep -v \* | xargs git branch -D
Importantly, as noted by @AndrewC, using git branch for scripting is discouraged. To avoid it use something like:
git for-each-ref --format '%(refname:short)' refs/heads | grep -v master | xargs git branch -D
Caution warranted on deletes!
$ m...
How to hide one item in an Android Spinner
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It's easier to hide an item at the end of the list by truncating the list.
But you have to select it first so it appears in the spinner, and then check if the selection has been changed to one of the items displayed.
List<String> list = new ArrayList<String>();
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How do I use method overloading in Python?
...te for element in container:). (The fact that they aren't directly related by inheritance is irrelevant.)
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GetType() can lie?
...ed with methods like CheckIfInt above to create havoc in libraries written by someone else.
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Retrieve list of tasks in a queue in Celery
...that are currently active.
i.active()
# Show tasks that have been claimed by workers
i.reserved()
Depending on what you want
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