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Difference between os.getenv and os.environ.get
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One difference observed (Python27):
os.environ raises an exception if the environmental variabl...
Difference between matches() and find() in Java Regex
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306
matches tries to match the expression against the entire string and implicitly add a ^ at the ...
Compare dates in MySQL
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Tadeck
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answered Sep 6 '10 at 14:59
NikNik
3,5...
What is the difference between required and ng-required?
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3 Answers
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Differences between utf8 and latin1
... was only introduced in MySQL 5.5. Before that version, it only goes up to 3 bytes per character, not 4 bytes per character. So, it supported only the BMP plane and not e.g. the Emoji plane. If you want full 4-byte UTF-8 support, upgrade MySQL to at least 5.5 or go for another RDBMS like PostgreSQL....
Open Graph namespace declaration: HTML with XMLNS or head prefix?
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edited Aug 14 '13 at 5:42
Matt Beckman
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What is the syntax for a default constructor for a generic class?
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Relative frequencies / proportions with dplyr
...()) %>%
mutate(freq = n / sum(n))
# am gear n freq
# 1 0 3 15 0.7894737
# 2 0 4 4 0.2105263
# 3 1 4 8 0.6153846
# 4 1 5 5 0.3846154
From the dplyr vignette:
When you group by multiple variables, each summary peels off one level of the grouping. That makes it ea...
UIViewContentModeScaleAspectFill not clipping
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352
Can you try setting clip to bounds
[_photoview setClipsToBounds:YES];
Or directly in your S...