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Bash script to receive and repass quoted parameters
...l of quoting at all. I.E. just call the above script like:
./test.sh 1 2 "3 4"
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How to show SQL queries run in the Rails console?
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Rails 3+
Enter this line in the console:
ActiveRecord::Base.logger = Logger.new(STDOUT)
Rails 2
Enter this line in the console:
ActiveRecord::Base.connection.instance_variable_set :@logger, Logger.new(STDOUT)
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Data structure for loaded dice?
...t time) with a one-time O(n) set-up. You can find it documented in chapter 3 (PDF) of "Non-Uniform Random Variate Generation" by Luc Devroye.
The idea is to take your array of probabilities pk and produce three new n-element arrays, qk, ak, and bk. Each qk is a probability between 0 and 1, and each...
How to find Array length inside the Handlebar templates?
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Stéphane Bruckert
17.3k99 gold badges7777 silver badges111111 bronze badges
answered Mar 15 '13 at 9:24
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Why does Assert.AreEqual(T obj1, Tobj2) fail with identical byte arrays
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139
Assert.Equals tests using the Equals method, which by default uses reference equality and, sinc...
MySql: Tinyint (2) vs tinyint(1) - what is the difference?
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edited Dec 2 '16 at 18:39
answered Dec 2 '16 at 18:33
Aa...
What is the difference between pluck and collect in Rails?
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231
pluck is on the db level. It will only query the particular field. See this.
When you do:
Us...
How to convert a boolean array to an int array
...gt;> x
array([ True, False, True], dtype=bool)
>>> x + [1, 2, 3]
array([2, 2, 4])
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How to profile a bash shell script slow startup?
My bash shell takes up to 3-4 seconds to start up, while if I start it with --norc it runs immediately.
7 Answers
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How to convert a data frame column to numeric type?
...ac num
1 a 1 1 a 1
2 b 2 2 b 2
3 c 3 3 c 3
4 d 4 4 d 4
5 e 5 5 e 5
and let us run:
> sapply(d, mode)
char fake_char fac char_fac num
"character" "character...