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Why do you have to call .items() when iterating over a dictionary in Python?
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For every python container C, the expectation is that
for item in C:
assert item in C
will pass just fine -- wouldn't you find it astonishing if one sense of in (the loop clause) had a completely different meaning from ...
Injecting content into specific sections from a partial view ASP.NET MVC 3 with Razor View Engine
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Sections don't work in partial views and that's by design. You may use some custom helpers to achieve similar behavior, but honestly it's the view's responsibility to include the necessary scripts, not the partial's responsibility. I would r...
How do I calculate someone's age in Java?
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JDK 8 makes this easy and elegant:
public class AgeCalculator {
public static int calculateAge(LocalDate birthDate, LocalDate currentDate) {
if ((birthDate != null) && (currentDate != null)) {
return Period.between(birthDate, currentDate).getYears();
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How to install a specific version of a ruby gem?
...gem uninstall fog. It will ask you which version to uninstall if you have more than one.
– Dizzley
Jan 26 '14 at 18:18
3
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Recommended add-ons/plugins for Microsoft Visual Studio [closed]
Can anyone recommend any good add-ons or plugins for Microsoft Visual Studio ?
Freebies are preferred, but if it is worth the cost then that's fine.
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How do I loop through a list by twos? [duplicate]
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You can use for in range with a step size of 2:
Python 2
for i in xrange(0,10,2):
print(i)
Python 3
for i in range(0,10,2):
print(i)
Note: Use xrange in Python 2 instead of range because it is more efficient as it generates an ...
How does one capture a Mac's command key via JavaScript?
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EDIT: As of 2019, e.metaKey is supported on all major browsers as per the MDN.
Note that on Windows, although the ⊞ Windows key is considered to be the "meta" key, it is not going to be captured by browsers as such.
This is only for the command key on MacO...
How to count the frequency of the elements in an unordered list?
I need to find the frequency of elements in an unordered list
33 Answers
33
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How do I get an element to scroll into view, using jQuery?
I have an HTML document with images in a grid format using <ul><li><img... . The browser window has both vertical & horizontal scrolling.
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Why do we have map, fmap and liftM?
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map exists to simplify operations on lists and for historical reasons (see What's the point of map in Haskell, when there is fmap?).
You might ask why we need a separate map function. Why not just do away with the current
list-only map function, and rename fmap to m...