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How to generate random number in Bash?
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Use $RANDOM. It's often useful in combination with simple shell arithmetic. For instance, to generate a random number between 1 and 10 (inclusive):
$ echo $((1 + RANDOM % 10))
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The actual generator is in variables.c, the function brand(). O...
Why would you use an ivar?
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Encapsulation
If the ivar is private, the other parts of the program can't get at it as easily. With a declared property, the clever people can access and mutate quite easily via the accessors.
Performance
Yes, this can make a difference in...
CMake unable to determine linker language with C++
...Cygwin, but can't seem to get either to work. My directory structure is as follows:
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vertical align middle in
I want to keep the height of #abc div at 50px and text to align vertically in the middle of the div .
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The developers of this app have not set up this app properly for Facebook Login?
I'm trying to make login with Facebook available in my script. I've done everything, but when I attempt to login with a Facebook account I get this error from Facebook:
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Order of event handler execution
If I set up multiple event handlers, like so:
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Creating a Pandas DataFrame from a Numpy array: How do I specify the index column and column headers
I have a Numpy array consisting of a list of lists, representing a two-dimensional array with row labels and column names as shown below:
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Cocoa Touch: How To Change UIView's Border Color And Thickness?
...ayer.borderColor = [UIColor redColor].CGColor;
view.layer.borderWidth = 3.0f;
You also need to link with QuartzCore.framework to access this functionality.
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How to print third column to last column?
I'm trying to remove the first two columns (of which I'm not interested in) from a DbgView log file. I can't seem to find an example that prints from column 3 onwards until the end of the line. Note that each line has variable number of columns.
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How do you search for files containing DOS line endings (CRLF) with grep on Linux?
I want to search for files containing DOS line endings with grep on Linux. Something like this:
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