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CSS Input Type Selectors - Possible to have an “or” or “not” syntax?
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How to abandon a hg merge?
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128
You can discard uncommitted changes with the -C (or --clean) flag:
hg update -C -r 3
BEWARE:...
Troubleshooting “The use statement with non-compound name … has no effect”
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answered Feb 16 '12 at 18:42
Lightness Races in OrbitLightness Races in Orbit
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Determine when a ViewPager changes pages
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289
Use the ViewPager.onPageChangeListener:
viewPager.addOnPageChangeListener(new OnPageChangeLis...
Replace all non-alphanumeric characters in a string
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answered Oct 20 '12 at 5:11
nneonneonneonneo
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Convert String to Uri
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answered Aug 15 '10 at 12:48
cchenesonccheneson
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Rails filtering array of objects by attribute value
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answered Apr 9 '12 at 11:16
VikVik
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Can a variable number of arguments be passed to a function?
...; 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 arguments you need to accept those as a separate actual argument, as sho...
Find first element in a sequence that matches a predicate
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260
To find first element in a sequence seq that matches a predicate:
next(x for x in seq if pred...
Best way to iterate through a Perl array
...ng of the array elements occurs. ($_ is aliased to the element in #1, but #2 and #3 actually copy the scalars from the array.)
#5 might be similar.
In terms memory usage: They're all the same except for #5.
for (@a) is special-cased to avoid flattening the array. The loop iterates over the indexes...