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Can “git pull --all” update all my local branches?
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answered Nov 30 '10 at 20:24
CascabelCascabel
398k6464 gold badges352352 silver badges307307 bronze badges
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Which @NotNull Java annotation should I use?
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+50
Since JSR 305 (whose goal was to standardize @NonNull and @Nullable) has been dormant for several years, I'm afraid there is no good a...
Cleaning up the iPhone simulator
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edited Sep 10 '15 at 21:28
Dave Jarvis
27.6k3535 gold badges157157 silver badges281281 bronze badges
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Can you create nested WITH clauses for Common Table Expressions?
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305
While not strictly nested, you can use common table expressions to reuse previous queries in su...
MYSQL OR vs IN performance
...ir "opinion", science is all about testing and evidence.
I ran a loop of 1000x the equivalent queries (for consistency, I used sql_no_cache):
IN: 2.34969592094s
OR: 5.83781504631s
Update:
(I don't have the source code for the original test, as it was 6 years ago, though it returns a result in th...
Summarizing multiple columns with dplyr? [duplicate]
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260
The dplyr package contains summarise_all for this aim:
library(dplyr)
df %>% group_by(grp) %&...
MySQL get row position in ORDER BY
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120
Use this:
SELECT x.id,
x.position,
x.name
FROM (SELECT t.id,
t....
How to make input type= file Should accept only pdf and xls
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answered Aug 27 '12 at 13:10
feeelafeeela
25.3k66 gold badges5454 silver badges6666 bronze badges
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The new keyword “auto”; When should it be used to declare a variable type? [duplicate]
...;
auto s = x * x; //square
auto c = x * x * x; //cube
for(int i = 0; i < 5 ; i++ )
std::cout << s(i) << ", " << c(i) << std::endl;
Output:
0, 0
1, 1
4, 8
9, 27
16, 64
Now compare the above code with the following equivalent code which doesn't use auto:
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Coalesce function for PHP?
...sce function (returns the first non-NULL value, example ). PHP, sadly in 2009, does not.
9 Answers
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