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Getting an element from a Set
...being mapped. In fact, the whole object 'revolves' around said key. Furthermore, the caller knows said String, but not the object itself; that's exactly why it wants to retrieve it by key. I'm using a Map now of course, but it remains odd behaviour.
– pauluss86
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Code block in numbered list (Wiki syntax)
...syntax, it works for me on 1.17
# one
#:<pre>
#::some stuff
#::some more stuff</pre>
# two
It is not perfect, because you end up with a more indent but it does allow one to use the wiki syntax for correctly formatted pre blocks over multiple lines.
As previously mentioned, the other ...
How do I create and read a value from cookie?
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Best way to merge two maps and sum the values of same key?
...ator, so you get the sum of values for each duplicate key.
Edit: A little more detail, as per user482745's request.
Mathematically a semigroup is just a set of values, together with an operator that takes two values from that set, and produces another value from that set. So integers under additi...
What do 'lazy' and 'greedy' mean in the context of regular expressions?
...hink that <.+> (. means any non newline character and + means one or more) would only match the <em> and the </em>, when in reality it will be very greedy, and go from the first < to the last >. This means it will match <em>Hello World</em> instead of what you wan...
What is the easiest/best/most correct way to iterate through the characters of a string in Java?
...ngth(), that is hoist the method behind that call up a few frames, but its more efficient to do this for(int i = 0, n = s.length() ; i < n ; i++) { char c = s.charAt(i); }
– Dave Cheney
Oct 13 '08 at 8:04
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Build a Basic Python Iterator
...increment. This method raises a StopIteration exception when there are no more value to return, which is implicitly captured by looping constructs to stop iterating.
Here's a simple example of a counter:
class Counter:
def __init__(self, low, high):
self.current = low - 1
sel...
Having Django serve downloadable files
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To be more clear: S.Lott has the simple example, just serving files straight from django, no other setup needed. elo80ka has the more efficient example, where the web-server handles static files and django doesn't have to. The la...
Do a “git export” (like “svn export”)?
...rmat zip --output /full/path/to/zipfile.zip master
git help archive for more details, it's quite flexible.
Be aware that even though the archive will not contain the .git directory, it will, however, contain other hidden git-specific files like .gitignore, .gitattributes, etc. If you don't wan...
Merge development branch with master
...rge the branch into master yet, after merging them, or that there is still more work to be done before these can be merged, so I tend to leave master untouched until final stuff.
EDIT: From comments
If you want to keep track of who did the merge and when, you can use --no-ff flag while merging to ...