How can I use ' in Ruby? -

How can I use ' in Ruby? -

i cannot utilize ' within ''

this gets syntax error:( assuming @post.user.nickname john

@message = @post.user.nickname + ''s post'

it has john's post

how can utilize '?

try

@message = @post.user.nickname + "'s post"

or

@message = @post.user.nickname + '\'s post'

ruby-on-rails ruby-on-rails-3