How to embed or nest ruby expression inside string interpolation

Question

I want to embed or nest a Ruby expression inside string interpolation, and have it evaluated. Something like this, though this doesn't work:

"#{is_true? ? 'True' : #{false_for_x? ? 'False for X' : 'False for Y'}}"

Can I do this? If so, how?

mdesantis · Accepted Answer · 2014-08-29 22:39:51Z

1

String interpolation has no sense outside string literals; probably you want this:

"#{is_true? ? 'True' : "#{false_for_x? ? 'False for X' : 'False for Y'}"}"

Or this (better):

"#{is_true? ? 'True' : (false_for_x? ? 'False for X' : 'False for Y')}"

answered Aug 29, 2014 at 22:39

mdesantis

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