Question

I’m currently generating an 8-character pseudo-random uppercase string for ‘A’ .. ‘Z’:

value = ''; 8.times{value  << (65 + rand(25)).chr} 

but it doesn’t look clean, and it can’t be passed as an argument since it isn’t a single statement. To get a mixed-case string ‘a’ .. ‘z’ plus ‘A’ .. ‘Z’, I changed it to:

value = ''; 8.times{value << ((rand(2)==1?65:97) + rand(25)).chr} 

but it looks like trash.

Does anyone have a better method?

Answer 1

(0...8).map { (65 + rand(26)).chr }.join 

I spend too much time golfing.

(0...50).map { ('a'..'z').to_a[rand(26)] }.join 

And a last one that’s even more confusing, but more flexible and wastes fewer cycles:

o = [('a'..'z'), ('A'..'Z')].map(&:to_a).flatten string = (0...50).map { o[rand(o.length)] }.join 

If you want to generate some random text then use the following:

50.times.map { (0...(rand(10))).map { ('a'..'z').to_a[rand(26)] }.join }.join(" ") 

this code generates 50 random word string with words length less than 10 characters and then join with space