Methods
at_rand
at_rand!
included
rand_byte
rand_byte!
rand_index
shuffle
shuffle!
Classes and Modules
Module Random::String::SelfPublic Class methods
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# File lib/more/facets/random.rb, line 318 def self.included(base) base.extend(Self) end
Public Instance methods
Return a random separation of the string. Default separation is by charaacter.
"Ruby rules".at_rand(' ') #=> ["Ruby"]
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# File lib/more/facets/random.rb, line 366 def at_rand( separator=// ) #separator = self.class.patterns( separator ) self.split(separator,-1).at_rand end
Return a random separation while removing it from the string. Default separation is by character.
s = "Ruby rules" s = at_rand!(' ') #=> "Ruby" s #=> "rules"
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# File lib/more/facets/random.rb, line 378 def at_rand!( separator=// ) #separator = self.class.patterns( separator ) a = self.shatter( separator ) w = []; a.each_with_index { |s,i| i % 2 == 0 ? w << s : w.last << s } i = Random.number(w.size) r = w.delete_at( i ) self.replace( w.join('') ) return r end
Return a random byte of self.
"Ruby rules".rand_byte #=> 121
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# File lib/more/facets/random.rb, line 392 def rand_byte self[Random.number(size)] end
Destructive rand_byte. Delete a random byte of self and return it.
s = "Ruby rules" s.rand_byte! #=> 121 s #=> "Rub rules"
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# File lib/more/facets/random.rb, line 402 def rand_byte! i = Random.number(size) rv = self[i,1] self[i,1] = '' rv end
Return a random string index.
"Ruby rules".rand_index #=> 3
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# File lib/more/facets/random.rb, line 413 def rand_index Random.number(size) end
Return the string with seperated sections arranged in a random order. The default seperation is by character.
"Ruby rules".shuffle #=> "e lybRsuur"
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# File lib/more/facets/random.rb, line 422 def shuffle(separator=//) split(separator).shuffle.join('') end