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How do I hide .class files from the Open Resource dialog in Eclipse?
...r to edit folder properties, and check the 'Derived' checkbox. If they're mixed with your '.java' files...tough luck, you'll need to set the derived property on each '.class' file by hand.
As far as I can tell there's no way to mark class files as derived resources globally for the workspace, but ...
Python, compute list difference
...oice to push reduce and and alternate impl of filter into functools. The mixed functional, OO and procedural nature of python has always been, IMO, one of its strengths.
– Kevin
Jun 20 '18 at 17:43
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Why does PostgreSQL perform sequential scan on indexed column?
...ster than an index scan.
This is because an index scan requires several IO operations for each row (look up the row in the index, then retrieve the row from the heap). Whereas a sequential scan only requires a single IO for each row - or even less because a block (page) on the disk contains more...
What is the difference between new/delete and malloc/free?
...lementation detail, which is another reason that malloc and new can not be mixed.
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Setting “checked” for a checkbox with jQuery
... performance. To me, coding using a common API makes it more readable than mixing native API and jQuery APIs. I'd stick with jQuery.
– Katie Kilian
May 4 '12 at 16:28
18
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Naming “class” and “id” HTML attributes - dashes vs. underlines [closed]
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Either example is perfectly valid, you can even throw into the mix ":" or "." as separators according to the w3c spec. I personally use "_" if it is a two word name just because of its similarity to space.
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Random record in ActiveRecord
...bility of selection and support for tables with deleted rows. You can even mix it with constraints.
User.where(favorite_day: "Friday").pluck(:id)
And thereby pick a random user who likes fridays rather than just any user.
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Error type 3 Error: Activity class {} does not exist
...me devices seems to have a problem with uninstall. For me, it is Xiaomi Mi Mix 2 with EU Build. I guess it is a error in Build version of device.
– Opiatefuchs
Feb 16 '18 at 8:56
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Can a variable number of arguments be passed to a function?
..." % (k, v)
myfunc(abc=123, efh=456)
# abc = 123
# efh = 456
And you can mix the two:
def myfunc2(*args, **kwargs):
for a in args:
print a
for k,v in kwargs.iteritems():
print "%s = %s" % (k, v)
myfunc2(1, 2, 3, banan=123)
# 1
# 2
# 3
# banan = 123
They must be both declare...
delete vs delete[] operators in C++
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@DonLarynx the correct difference is that mixing them up results in an ill-formed program. An implementation might know how many objects to destruct, or it might not. It is allowed to know that it was called wrong, and abort the program telling you where the problem ...