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Does a dot have to be escaped in a character class (square brackets) of a regular expression?
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lilactiger89lilactiger89
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3
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Java Generics Wildcarding With Multiple Classes
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Bash script to calculate time elapsed
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10 Answers
10
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How can I assign an ID to a view programmatically?
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edited May 23 '17 at 12:10
Community♦
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answered Dec 10 '11 at 23:43
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How to create a UIView bounce animation?
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– Vyachaslav Gerchicov
Jun 26 '17 at 10:50
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Append an object to a list in R in amortized constant time, O(1)?
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answered Mar 13 '10 at 1:56
Dirk EddelbuettelDirk Eddelbuettel
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MySQL select 10 random rows from 600K rows fast
How can I best write a query that selects 10 rows randomly from a total of 600k?
26 Answers
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Select statement to find duplicates on certain fields
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answered Dec 13 '10 at 22:37
Rajesh ChamarthiRajesh Chamarthi
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How to retrieve the LoaderException property?
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– Muhammad Ashhar Hasan
Jan 26 '19 at 8:10
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How to sort an array in descending order in Ruby
... Here's what I found out:
#!/usr/bin/ruby
require 'benchmark'
ary = []
1000.times {
ary << {:bar => rand(1000)}
}
n = 500
Benchmark.bm(20) do |x|
x.report("sort") { n.times { ary.sort{ |a,b| b[:bar] <=> a[:bar] } } }
x.report("sort reverse") { n.times ...