Get array values using index key in Ruby on Rails

Question

I'm iterating through an array or hash, and I'd like to get values based on index.

@lv = {'apple' => ['round', 'red'], 'more names' => ['tags', 'more tags']}

@lv.each do |key, value|
   # if the value is from the index key and equal to key itself...
end

I'm not sure how to get the value from @lv. Lets say I want to get apple:

Is there something like @lv[0] should equal apple? Because

[0] => apple
[1] => more names

right?

So I can

@lv.each do |key, value|
   if @lv[0] == key
     # apple equals apple, then proceed
   end
end

What is the correct syntax on doing this?

Thanks!

jdoe · Accepted Answer · 2013-04-15 06:02:36Z

6

@lv.keys[0]   # => "apple"
@lv.values[0] # => ["round", "red"]

answered Apr 15, 2013 at 6:02

jdoe

15.8k2 gold badges49 silver badges49 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Get array values using index key in Ruby on Rails

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related