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How do I check in JavaScript if a value exists at a certain array index?
...ey are named 0 to n - 1, and anything in this range is part of the array.
What you probably want, however, is to know if a value in an array is actually something defined - that is, it's not undefined. Maybe you even want to know if it's defined and not null. It's possible to add members to an ar...
What are the advantages of using a schema-free database like MongoDB compared to a relational databa
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Saying "better performance" is misleading; it depends on what you're doing. MongoDB not supporting joins does not make it faster, it just means it's better at simple DB operations (supposedly, I actually haven't seen a benchmark to prove this). Once you need the functionality that ...
Reorder levels of a factor without changing order of values
...= x, FUN = FUN, ...) : argument "X" is missing, with no default". Not sure what the solution to this problem is. I can't find any relevant difference between the datasets.
– CoderGuy123
Dec 27 '15 at 21:49
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In Bash, how to add “Are you sure [Y/n]” to any command or alias?
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@DennisWilliamson correct, that's what I tried to mean. Can't edit my comment for some reason.
– João Cunha
Jan 24 '15 at 18:44
7
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How do I set the figure title and axes labels font size in Matplotlib?
...int("figure.titlesize" in mpl.rcParams.keys())'. Result is 1.5.1, True. 1) What version of matplotlib are you using? What version of Python? 2) Could it be a bug where for some reason it accepts str but not unicode in Py2?
– Mad Physicist
May 30 '16 at 1:18
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How to get index of object by its property in JavaScript?
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I have to iterate the entire array no matter what. The first method don't need to.
– German Attanasio
Jun 2 '14 at 2:22
1
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Authorative way to override onMeasure()?
What's the correct way of overriding onMeasure()? I've seen various approaches. For example, Professional Android Development uses MeasureSpec to calculate the dimensions, then ends with a call to setMeasuredDimension(). For example:
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Keyboard shortcuts in WPF
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I found this to be exactly what I was looking for related to key binding in WPF:
<Window.InputBindings>
<KeyBinding Modifiers="Control"
Key="N"
Command="{Binding CreateCustomerCommand}" />
&l...
Apple Mach-O Linker Error when compiling for device
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I think i don't get it. What should I do…?
– fabian
Mar 29 '15 at 20:08
1
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What should I do when 'svn cleanup' fails?
... feasible with the move to a database working-copy implementation.
Here's what I did that seemed to work:
Delete the .svn directory for your working copy.
Start a new checkout in a new, temporary directory.
Cancel the checkout (we don't want to wait for everything to get pulled down).
Run a clean...