CODEWITHSUNDEEP
ruby-on-rails
Kingsley Simon
Kingsley Simon

Reputation: 2210

Rails If- Elseif- Else shorthand

In Rails I know to represent If-Else shorthand is this 

if a==b 
 do_something(a)
else 
  do_something(b) 
end

shorthand a==b ? do_something(a) : do_something(b)

How do I represent this in and if-elseif-else statement?

if a==b 
 do_something(a)
elsif a==c 
  do_something(c)
else
  do_something(b) 
end

Upvotes: 1

Views: 2876

Answers (2)

DVG
DVG

Reputation: 17480

It's not quite accurate to call that shorthand. That is the ternary operator, which represents a conditional. There is no elsif version.

As for making the code cleaner, if you have a lot of elsifs, a case statement will read better

case a
when b then do_something
...
end

And my personal favorite, wrap your conditional in a intent-revealing private method, or if it's complex enough, it's own object!

Upvotes: 0

BK1603
BK1603

Reputation: 150

you can try this:

(a == b) ? do_something(a) : (a == c) ? do_something(c) : do_something(b)

Or

(a == b) ? do_something(a) : ((a == c) ? do_something(c) : do_something(b))

Upvotes: 3

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