Truncate string to the first n words

Question

What\'s the best way to truncate a string to the first n words?

Answer 1

n = 3
str = "your long    long   input string or whatever"
str.split[0...n].join(' ')
 => "your long long"


str.split[0...n] # note that there are three dots, which excludes n
 => ["your", "long", "long"]