I am trying to split a string, and output the different parts, whats the best practice for rails 3 ?
String: "book_page_title" Seperator: "_"
I want to have book, page and title as seperate variables, so that I can perform actions on them..
Any help is appreciated. Also, I am having trouble finding good reference sites, with examples like PHP have, and suggestions ?
To split:
book,page,title = string.split('_')
And to recombine:
string = [book,page,title].join('_')
use
split('_')
method it gives array.
Try ruby+string+doc in google, you will get http://ruby-doc.org/core/classes/String.html as the first result, and you can see a number of string functions in this link. You can see split there.
splitted_array = "book_page_title".split("_")
=> ["book", "page", "title"]
splitted_array.each do |string|
#..do manipulations here
end
"book_page_title".split("_") will return you array of strings. So you can access every element via [].
splitted = "book_page_title".split("_") # ["book", "page", "title"]
puts splitted[0] # gives "book"
puts splitted[1] # gives "page"
puts splitted[2] # gives "title"
a = "book_page_title".split("_")
a.each do |i|
instance_variable_set("@#{i}", "value")
end
@book #=> *value*
@page #=> *value*
@title #=> *value*
