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Find the extension of a filename in Ruby
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Use extname method from File class
File.extname("test.rb") #=> ".rb"
Also you may need basename method
File.basename("/home/gumby/work/ruby.rb", ".rb") #=> "ruby"
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Waiting on a list of Future
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@VSEWHGHP From the javadoc: If any of the given CompletableFutures complete exceptionally, then the returned CompletableFuture also does so, with a CompletionException holding this exception as its cause.
– Andrej...
What is the difference between t.belongs_to and t.references in rails?
...duced ambiguity. One advantage of references is that it's simply different from what you use in the model, so you get less confused if you're in the model or migration. But any term that differs would satisfy this criteria.
– ahnbizcad
Sep 12 '14 at 12:27
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C: differences between char pointer and array [duplicate]
...rs. Array objects do not store an address anywhere (which should be clear from the memory map in my answer). Rather, array expressions will "decay" to pointer types unless they are operands of the unary & or sizeof operators (hence the difference in behavior for sizeof).
–...
Difference between Statement and PreparedStatement
...URL, setRowId, setSQLXML ans setNull methods
In java, inherits all methods from Statement. It inherits the addBatch method, and additionally allows a set of parameter values to be added to match the set of batched SQL commands via addBatch method.
In java, a special type of PreparedStatement (the s...
Mockito: List Matchers with generics
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Matchers is now deprecated, here's the info from mockito "Use ArgumentMatchers. This class is now deprecated in order to avoid a name clash with Hamcrest org.hamcrest.Matchers class. This class will likely be removed in version 3.0." static.javadoc.io/org.mockito/moc...
Significance of -pthread flag when compiling
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From man gcc:
-pthread
Adds support for multithreading with the pthreads
library. This
option sets flags for both the preprocessor and linker.
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How to grant permission to users for a directory using command line in Windows?
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Coming from the *nix world and being used to 'chown/chmod' to give access and set permissions via the CLI, this thread has been very helpful.
– bgarlock
Oct 27 '15 at 14:40
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What is the optimal length for user password salt? [closed]
...erent output, which is a constant multiplicative factor and thus discarded from the big-O.
– Stephen Touset
Jul 6 '12 at 14:51
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getMonth in javascript gives previous month
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Because getmonth() start from 0. You may want to have d1.getMonth() + 1 to achieve what you want.
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