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Does Java support default parameter values?
...berson: Static factory methods are no more harmful than new. They are used all the time in new code. Builders for simple value objects are often the result of over-engineering.
– Lii
Jan 22 '16 at 8:38
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What's the difference between dynamic (C# 4) and var?
...iteLine(s.Length);
and
string s = "abc";
Console.WriteLine(s.Length);
All that happened was that the compiler figured out that s must be a string (from the initializer). In both cases, it knows (in the IL) that s.Length means the (instance) string.Length property.
dynamic is a very different b...
Getting an element from a Set
...as already been added to the Set? For example, when .equals() does not use all of the fields, as the OP specified. A less efficient solution would be to remove the element and re-add it with its values updated.
– KyleM
Feb 19 '13 at 17:48
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uppercase first character in a variable with bash
... Despite being more complex than the best scored answer, this one actually does exactly that: 'uppercase first character in a variable'. Best scored answer does not have that results. Looks like simple answers are upvoted more willingly than the correct ones?
– Krzysztof J...
Where should signal handlers live in a django project?
...
I actually like to make them classmethods of the model itself. That keeps everything within one class, and means you don't have to worry about importing anything.
...
Self-references in object literals / initializers
...some kind of one time initialization of the object.
Note that you are actually assigning the return value of init() to foo, therefore you have to return this.
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How can I call a custom Django manage.py command directly from a test driver?
...ts.
But if you by some reason cannot decouple logic form command you can call it from any code using call_command method like this:
from django.core.management import call_command
call_command('my_command', 'foo', bar='baz')
...
Printing without newline (print 'a',) prints a space, how to remove?
... This will consume a bit of memory for the string, but only make a single call to print. Note that string concatenation using += is now linear in the size of the string you're concatenating so this will be fast.
>>> for i in xrange(20):
... s += 'a'
...
>>> print s
aaaaaaaaaa...
sort object properties and JSON.stringify
...Obj, Object.keys(flattenObject(sortMyObj)).sort());
To do it programmatically with something you can tweak yourself, you need to push the object property names into an array, then sort the array alphabetically and iterate through that array (which will be in the right order) and select each value ...
How to check if a string contains a substring in Bash
...you can get a similar effect with a case statement:
case "$string" in
*foo*)
# Do stuff
;;
esac
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