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Unpacking, extended unpacking and nested extended unpacking
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Since the OP gave a long list examples, it's only fitting that you give a long list of explanations.
– John Y
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Pros and cons of AppSettings vs applicationSettings (.NET app.config / Web.config)
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edited May 27 '13 at 19:40
Luis
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answered Jan 2...
What is a ViewModelLocator and what are its pros/cons compared to DataTemplates?
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204
Intro
In MVVM the usual practice is to have the Views find their ViewModels by resolving them f...
How to show all privileges from a user in oracle?
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164
You can try these below views.
SELECT * FROM USER_SYS_PRIVS;
SELECT * FROM USER_TAB_PRIVS;
SEL...
ASP.NET Identity's default Password Hasher - How does it work and is it secure?
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4 Answers
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Bomb dropping algorithm
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edited Mar 9 '13 at 8:46
community wiki
4 r...
Change date of git tag (or GitHub Release based on it)
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answered Feb 12 '14 at 23:06
PhrogzPhrogz
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Remove empty elements from an array in Javascript
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44 Answers
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What does .SD stand for in data.table in R
...,3), v=1:6)
setkey(DT, y)
DT
# x y v
# 1: a 1 1
# 2: b 1 3
# 3: c 1 5
# 4: a 3 2
# 5: b 3 4
# 6: c 3 6
Doing this may help you see what .SD is:
DT[ , .SD[ , paste(x, v, sep="", collapse="_")], by=y]
# y V1
# 1: 1 a1_b3_c5
# 2: 3 a2_b4_c6
Basically, the by=y statement breaks the orig...
How to convert a number to string and vice versa in C++
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4 Answers
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