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How to delete object from array inside foreach loop?
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234
foreach($array as $elementKey => $element) {
foreach($element as $valueKey => $value)...
Check difference in seconds between two times
...8
JonJon
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How to find Array length inside the Handlebar templates?
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Stéphane Bruckert
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answered Mar 15 '13 at 9:24
AbhidevAbhidev
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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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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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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...
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...
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...
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...