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Why in Java 8 split sometimes removes empty strings at start of result array?
Before Java 8 when we split on empty string like
3 Answers
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Re-ordering columns in pandas dataframe based on column name [duplicate]
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edited Dec 18 '18 at 22:57
gcamargo
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Determine the data types of a data frame's columns
...r(my.data)
'data.frame': 5 obs. of 4 variables:
$ y : num 1.03 1.599 -0.818 0.872 -2.682
$ x1: int 1 2 3 4 5
$ x2: logi TRUE TRUE FALSE FALSE FALSE
$ X3: Factor w/ 5 levels "a","b","c","d",..: 1 2 3 4 5
@Gavin Simpson's approach is also streamlined, but provides slightly different information...
How to merge lists into a list of tuples?
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8 Answers
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How to change the output color of echo in Linux
... msanford made for tput, here is the "ANSI-Rainbow" for (( i = 30; i < 38; i++ )); do echo -e "\033[0;"$i"m Normal: (0;$i); \033[1;"$i"m Light: (1;$i)"; done
– everyman
Jan 28 '16 at 21:28
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Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
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Uncommenting DOCKER_OPTS="--dns 8.8.8.8 --dns 8.8.4.4" in /etc/default/docker as Matt Carrier suggested did NOT work for me. Nor did putting my corporation's DNS servers in that file. But, there's another way (read on).
First, let's verify the problem:
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Automatic Preferred Max Layout Width is not available on iOS versions prior to 8.0
...that label to 2.
Compile
I've filed the following radar:
rdar://problem/18700567
Update 2:
Unfortunately, this is a thing again in the release version of Xcode 6. Note that you can, for the most part, manually edit your storyboard/xib to fix the problem. Per Charles A. in the comments below:
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Why does (“foo” === new String(“foo”)) evaluate to false in JavaScript?
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answered Jun 8 '12 at 15:39
SLaksSLaks
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Regex to validate date format dd/mm/yyyy
...to take dd/mm/yyyy, dd-mm-yyyy or dd.mm.yyyy.
^(?:(?:31(\/|-|\.)(?:0?[13578]|1[02]))\1|(?:(?:29|30)(\/|-|\.)(?:0?[13-9]|1[0-2])\2))(?:(?:1[6-9]|[2-9]\d)?\d{2})$|^(?:29(\/|-|\.)0?2\3(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))$|^(?:0?[1-9]|1\d|2[0...
Sort objects in ArrayList by date?
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answered May 8 '11 at 12:29
DomchiDomchi
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