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Convert List to List
While we can inherit from base class/interface, why can't we declare a List<>
using same class/interface?
11 Ans...
Why historically do people use 255 not 256 for database field magnitudes?
...onstrained otherwise). Most systems treat such an empty string as distinct from NULL, but some systems (notably Oracle) treat an empty string identically to NULL. For systems where an empty string is not NULL, an additional bit somewhere in the row would be needed to indicate whether the value shoul...
How can I read a function's signature including default argument values?
...he signature of a callable object and its return annotation:
>>> from inspect import signature
>>> def foo(a, *, b:int, **kwargs):
... pass
>>> sig = signature(foo)
>>> str(sig)
'(a, *, b:int, **kwargs)'
>>> str(sig.parameters['b'])
'b:int'
>&...
What is sandboxing?
...rogram in controlled environment.
The red arrows indicate changes flowing from a running program into your computer. The box labeled Hard disk (no sandbox) shows changes by a program running normally. The box labeled Hard disk (with sandbox) shows changes by a program running under Sandboxie. The a...
IIS7 deployment - duplicate 'system.web.extensions/scripting/scriptResourceHandler' section
...nk you for explaining this. I kept seeing the solution to remove a section from the config file and I'm wondering, "how is cutting out parts of your config file a solution"?
– Adam Bruss
Apr 9 '13 at 20:48
...
Revert to Eclipse default settings
...d up my problem. Also, the Show line numbers check box is on the last page from above.
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Comparing date part only without comparing time in JavaScript
...ful : if date1 and date2 are in winter and summer, and you plan to iterate from one to the other with addDays(1), the problem is that they won't have the same timezone because of the daylight saving, so the last compare that should give equal dates will not work because the two date are not really a...
python list by value not by reference [duplicate]
... you want a full copy of your objects you need copy.deepcopy
>>> from copy import deepcopy
>>> a = [[1,2],[3],[4]]
>>> b = a[:]
>>> c = deepcopy(a)
>>> c[0].append(9)
>>> a
[[1, 2], [3], [4]]
>>> b
[[1, 2], [3], [4]]
>>> c
[...
Git undo changes in some files [duplicate]
..., but do not commit yet
git revert -n <sha1>
# clean all the changes from the index
git reset
# now just add A
git add A
git commit
Another method again, requires the use of the rebase -i command. This one can be useful if you have more than one commit to edit:
# use rebase -i to cherry pic...
How do I define global variables in CoffeeScript?
...in the coffee-script, that way it prevents the compiled JavaScript version from leaking everything into the global namespace.
So since there's no way to make something "leak" into the global namespace from the coffee-script side of things on purpose, you need to define your global variables as pr...