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What are best practices that you use when writing Objective-C and Cocoa? [closed]
...language
– Tom Fobear
May 26 '11 at 20:30
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Retrieve a single file from a repository
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answered Aug 20 '13 at 9:23
Yisrael DovYisrael Dov
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Python: Checking if a 'Dictionary' is empty doesn't seem to work
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edited Apr 20 '14 at 1:37
answered Apr 20 '14 at 1:31
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PostgreSQL: How to make “case-insensitive” query
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Also specify varchar_pattern_ops if you want the index to work with LIKE 'xxx%' query, i.e. CREATE INDEX ix_groups_name ON groups (lower(na...
How to send a command to all panes in tmux?
...-panes off
– guneysus
Oct 30 '16 at 20:00
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What exactly do the Vagrant commands do?
... nothing useful at all.
– DougW
Feb 20 '13 at 3:58
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Vagrant 1.2 seems to have gone backwards. eg...
Grouping functions (tapply, by, aggregate) and the *apply family
...ss 2nd and 3rd dimension
apply(M, 1, sum)
# Result is one-dimensional
[1] 120 128 136 144
# Apply sum across each M[*, *, ] - i.e Sum across 3rd dimension
apply(M, c(1,2), sum)
# Result is two-dimensional
[,1] [,2] [,3] [,4]
[1,] 18 26 34 42
[2,] 20 28 36 44
[3,] 22 30 38...
Difference between numeric, float and decimal in SQL Server
...e Numeric Data Type usually uses less storage and have better speed (up to 20x) and you should also consider when they got converted in .NET
What is the difference between Decimal, Float and Double in C#
Decimal vs Double Speed
SQL Server - .NET Data Type Mappings (From MSDN)
main source :...
Looking to understand the iOS UIViewController lifecycle
...loaded again.
– Ricky Helgesson
Aug 20 '12 at 14:59
4
ViewDidLoad is not actually called when you...
Why does ConcurrentHashMap prevent null keys and values?
... for that type.
– Alice Purcell
Sep 20 '18 at 20:18
@AlicePurcell, "but with a concurrent map that of course won't wor...