This page contains automated test results for code from O'Reilly's Ruby Cookbook. If this code looks interesting or useful, you might want to buy the whole book.
Generating Random Numbers | ||
---|---|---|
Code | Expected | Actual |
rand |
0.517297883846589 | 0.517297883846589 |
rand |
0.946962603814814 | 0.946962603814814 |
rand(5) |
0 | 0 |
rand(5) |
4 | 4 |
rand(5) |
3 | 3 |
rand(1000) |
39 | 39 |
a = ['item1', 'item2', 'item3'] a[rand(a.size)] |
"item3" | "item3" |
m = { :key1 => 'value1', :key2 => 'value2', :key3 => 'value3' } values = m.values values[rand(values.size)] |
"value1" | "value1" |
def random_word letters = { ?v => 'aeiou', ?c => 'bcdfghjklmnprstvwyz' } word = '' 'cvcvcvc'.each_byte do |x| source = letters[x] word << source[rand(source.length)].chr end return word end random_word |
"josuyip" | "josuyip" |
random_word |
"haramic" | "haramic" |
#Some random numbers based on process number and current time rand(1000) |
187 | 187 |
rand(1000) |
551 | 551 |
rand(1000) |
911 | 911 |
#Start the seed with the number 1 srand 1 rand(1000) |
37 | 37 |
rand(1000) |
235 | 235 |
rand(1000) |
908 | 908 |
#Reset the seed to its previous state srand 1 rand(1000) |
37 | 37 |
rand(1000) |
235 | 235 |
rand(1000) |
908 | 908 |