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Can someone explain the traverse function in Haskell?
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traverse is the same as fmap, except that it also allows you to run effects while you're rebui...
What is the purpose and use of **kwargs?
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On select change, get data attribute value
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edited May 29 '13 at 0:12
answered Dec 1 '11 at 17:32
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Overloading Macro on Number of Arguments
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Simple as:
#define GET_MACRO(_1,_2,_3,NAME,...) NAME
#define FOO(...) GET_MACRO(__VA_ARGS__, FOO3, FOO2)(__VA_ARGS__)
So if you have these macros:
FOO(World, !) # expands to FOO2(World, !)
FOO(foo,bar,baz) # expands to FOO3(foo,bar,baz)
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Activity transition in Android
How can I define the transition between two activities for Android 1.5 and later?
I would like an activity to fade in.
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How do you allow spaces to be entered using scanf?
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How do I query if a database schema exists
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Are you looking for sys.schemas?
IF NOT EXISTS (SELECT * FROM sys.schemas WHERE name = 'jim')...
Can a variable number of arguments be passed to a function?
...nt "I was called with", len(arg), "arguments:", arg
>>> manyArgs(1)
I was called with 1 arguments: (1,)
>>> manyArgs(1, 2, 3)
I was called with 3 arguments: (1, 2, 3)
As you can see, Python will unpack the arguments as a single tuple with all the arguments.
For keyword argument...
java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing
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What does Bump Version stand for?
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It means to increment the version number to a new, unique value.
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