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Android error: Failed to install *.apk on device *: timeout
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Can we have multiple in same ?
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Yes you can use them, for example I use them to more easily style groups of data, like this:
thead th { width: 100px; border-bottom: solid 1px #ddd; font-weight: bold; }
tbody:nth-child(odd) { background: #f5f5f5; border: solid 1px #ddd; }
tbody:nth-child(even) { b...
ActiveRecord.find(array_of_ids), preserving order
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This no longer works. For more recent Rails: Object.where(id: ids).order("field(id, #{ids.join ','})")
– mahemoff
Apr 18 '15 at 8:38
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What are the differences between “generic” types in C++ and Java?
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How to remove a field from params[:something]
...he extract! (has the ! bang operator) will modify the original so use with more care!
Original Answer
You can remove a key/value pair from a Hash using Hash#delete:
params.delete :company
If it's contained in params[:user], then you'd use this:
params[:user].delete :company
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How to pass argument to Makefile from command line?
... from a list. So $(filter-out bar, foo bar baz) returns foo baz (it can be more subtle, but we don't need subtlety here).
Put these together and $(filter-out $@,$(MAKECMDGOALS)) returns the list of targets specified on the command line other than "action", which might be "value1 value2".
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What does numpy.random.seed(0) do?
...s analog or, if neither of those is available, it will use the clock.
For more information on using seeds to generate pseudo-random numbers, see wikipedia.
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Launch an app from within another (iPhone)
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Note: If more than one third-party app registers to handle the same URL scheme, there is currently no process for determining which app will be given that scheme. Ref: developer.apple.com/library/ios/#documentation/iPhone/…
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How do I get the currently displayed fragment?
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Yes, but there could be more than one fragment visible at a time. So there is nothing like the "only active fragment"....
– ramdroid
Feb 15 '12 at 14:25
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Passing arguments forward to another javascript function
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