Simulate ternary operator in Elixir

elixir ternary-operator
Teo Choong Ping picture Teo Choong Ping · Jun 25, 2016 · Viewed 15.7k times · Source

How to do the similar conditional one-line check in Elixir?

if (x > 0) ? x : nil

Is this the only equivalent in elixir world?

if true, do: 1, else: 2

Answer

Keith Nicholas picture Keith Nicholas · Jun 28, 2016

To me, the if IS the equivalent of a ternary operator as it evaluates to a value which for various other languages it doesn't.

so x = if false, do: 1, else: 2

is basically x = false? 1 : 2

Not sure why Ruby adopted it ( if you are coming from Ruby ) as it has assignable if statements. in C the ternary is useful as the code bloats with the equivalent if statements. Of course C programmers desperate for terseness went nuts and did many nested upon nested ternaries :)

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