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SparseArray vs HashMap

...pe. There are some variants for different key/value types, even though not all of them are publicly available. Benefits are: Allocation-free No boxing Drawbacks: Generally slower, not indicated for large collections They won't work in a non-Android project HashMap can be replaced by the fol...
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Colspan/Rowspan for elements whose display is set to table-cell

...SS, I'll be stubborn and throw in my workaround I figured out today, especially since it's much more elegant than having a table inside a table. Example equals to <table> with two cells per row and two rows, where the cell in the second row is a td with colspan="2". I have tested this with I...
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To find whether a column exists in data frame or not

... all(c("d", "e", "f") %in% colnames(dat)) – skan Jul 28 '17 at 19:59 add a comment ...
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Why is $$ returning the same id as the parent process?

... "parent" is a bit misleading (at least it was to me), it's actually the "top level" shell. For instance : echo $$; (echo $$; (echo $$)) echoes the same pid three times – Martin Bouladour Jul 20 '17 at 9:59 ...
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Nullable type issue with ?: Conditional Operator

... @starmandeluxe they all likely point here (at least that I how I got here) – Scott Chamberlain May 8 '17 at 15:44 add a ...
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Choosing a file in Python with simple Dialog

... I got TypeError: 'module' object is not callable on Tk().withdraw() - any ideas? – user391339 Feb 18 '14 at 20:58 1 ...
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Handling InterruptedException in Java

... way to do it? You've probably come to ask this question because you've called a method that throws InterruptedException. First of all, you should see throws InterruptedException for what it is: A part of the method signature and a possible outcome of calling the method you're calling. So start b...
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iOS: Access app-info.plist variables in code

...ode (right click the info.plist - select Open As) then you will get to see all the various key names you can use. share | improve this answer | follow | ...
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Getting “Lock wait timeout exceeded; try restarting transaction” even though I'm not using a transac

...ion; autocommit does not disable transactions, it just makes them automatically commit at the end of the statement. What is happening is, some other thread is holding a record lock on some record (you're updating every record in the table!) for too long, and your thread is being timed out. You can...
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Send a pull request on GitHub for only latest commit

... You need to basically create a new branch & cherry-pick the commits you want to add to it. Note: you might need these before the checkout/cherry-pick commands git remote add upstream <git repository> git remote update git checkout...