Ruby capitalize every word first letter

Question

I need to make the first character of every word uppercase, and make the rest lowercase...

manufacturer.MFA_BRAND.first.upcase

is only sett

Answer 1

I used this for a similar problem:

'catherine mc-nulty joséphina'.capitalize.gsub(/(\s+\w)/) { |stuff| stuff.upcase }

This handles the following weird cases I saw trying the previous answers:

• non-word characters like -
• accented characters common in names like é
• capital characters in the middle of the string

Answer 2

"hello world".split.each{|i| i.capitalize!}.join(' ')

Answer 3

If you are trying to capitalize the first letter of each word in an array you can simply put this:

array_name.map(&:capitalize)

Answer 4

Look into the String#capitalize method.

http://www.ruby-doc.org/core-1.9.3/String.html#method-i-capitalize

Answer 5

Another option is to use a regex and gsub, which takes a block:

'one TWO three foUR'.gsub(/\w+/, &:capitalize)

Answer 6

"hello world".titleize which should output "Hello World".