CODEWITHSUNDEEP
ruby-on-railsrubyloops
mikeymurph77
mikeymurph77

Reputation: 802

Get the next item in a .each loop without ending the current item's iteration

I have a collection that I'm cycling through with an .each loop. Is there a way to get the next value without breaking the current iteration for a particular item in the collection?

collection = [foo, bar, quux]

collection.each do |item|
  # Print the current iteration "foo"
  p item #should return foo

  # Also print the next iteration "bar" 
  # without breaking the current each loop for "foo"
  p item.something_to_get_bar
end

Upvotes: 2

Views: 3586

Answers (1)

smathy
smathy

Reputation: 27971

collection.each_with_index do |item, i|
  next_item = collection[i+1]   # will be nil when past the end of the collection
end

Upvotes: 9

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