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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...
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...
To find whether a column exists in data frame or not
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all(c("d", "e", "f") %in% colnames(dat))
– skan
Jul 28 '17 at 19:59
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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
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@starmandeluxe they all likely point here (at least that I how I got here)
– Scott Chamberlain
May 8 '17 at 15:44
add a ...
Choosing a file in Python with simple Dialog
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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...
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.
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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...
Send a pull request on GitHub for only latest commit
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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...
