How to output position of elements in an array

Question

If I have an array:

[Red, Blue, Pick, Orange]

The array has been sorted and I'd to show what position they are inside the array:

Red
Blue
Pink
Orange

I'd display the colours to the user like this but cannot work out how to display showing that red is number 1, blue is number 2 and 3 is pink in my sorted list.

<% @colours.each do |colour| %>
 <%= colour %>
<% end %>

What about <ol><%= colour %></ol> (assuming this is HTML)? — Stefan
– Stefan, Commented May 4, 2016 at 12:54

the Tin Man · Accepted Answer · 2016-05-04 14:59:06Z

5

You could use the method each_with_index.

<% @colours.each_with_index do |colour, i| %>
 <%= "#{i+1}: #{colour}" %>
<% end %>

edited May 4, 2016 at 14:59

the Tin Man

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answered May 4, 2016 at 12:47

Albin

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1 Comment

Stefan Over a year ago

You can also use .each.with_index(1) to have a 1-based index.

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