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Generating all permutations of a given string
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Where is Vagrant saving changes to the VM?
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How do I encode/decode HTML entities in Ruby?
...urana; sudo gem install htmlentities
Successfully installed htmlentities-4.2.4
: jmglov@laurana; irb
irb(main):001:0> require 'htmlentities'
=> []
irb(main):002:0> HTMLEntities.new.decode "¡I'm highly annoyed with character references!"
=> "¡I'm highly annoy...
Override body style for content in an iframe
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edited Feb 22 '18 at 5:15
Louis
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How can I reverse the order of lines in a file?
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AngularJS For Loop with Numbers & Ranges
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Given a number, find the next higher number which has the exact same set of digits as the original n
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Float vs Decimal in ActiveRecord
...Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly.
That's why there is a Decimal format. If you do this:
irb:001:0> "%.47f" % (1.0/10)
=> "0.10000000000000000555111512312578270211...
regex.test V.S. string.match to know if a string matches a regular expression
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Michał Perłakowski
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answered Jun 7 '12 at 21:26
gdoron is suppor...