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What's the idiomatic syntax for prepending to a short python list?
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819
The s.insert(0, x) form is the most common.
Whenever you see it though, it may be time to cons...
How to pass arguments and redirect stdin from a file to program run in gdb?
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136
Pass the arguments to the run command from within gdb.
$ gdb ./a.out
(gdb) r < t
Starting ...
What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
...a tuple:
def foo(*args):
for a in args:
print(a)
foo(1)
# 1
foo(1,2,3)
# 1
# 2
# 3
The **kwargs will give you all
keyword arguments except for those corresponding to a formal parameter as a dictionary.
def bar(**kwargs):
for a in kwargs:
print(a, kwargs[a])
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How do I specify multiple targets in my podfile for my Xcode project?
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CocoaPods 1.0 has changed the syntax for this. It now looks like this:
def shared_pods
pod 'SSKeychain', '~> 0.1.4'
pod 'INAppStoreWindow', :head
pod 'AFNetworking', '1.1.0'
pod 'Reachability', '~> 3.1.0'
po...
How to sort a list in Scala by two fields?
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217
rows.sortBy(r => (r.lastName, r.firstName))
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Difference in Months between two dates in JavaScript
...ween two points in time.
For instance, off-the-cuff:
function monthDiff(d1, d2) {
var months;
months = (d2.getFullYear() - d1.getFullYear()) * 12;
months -= d1.getMonth();
months += d2.getMonth();
return months <= 0 ? 0 : months;
}
function monthDiff(d1, d2) {
var...
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
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163
This is a recurring subject in Stackoverflow and since I was unable to find a relevant impleme...
Calculating frames per second in a game
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19 Answers
19
Active
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Is it possible to change only the alpha of a rgba background colour on hover?
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14 Answers
14
Active
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Disable/turn off inherited CSS3 transitions
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166
The use of transition: none seems to be supported (with a specific adjustment for Opera) given...