String interpretation in Ruby
Archive - Originally posted on "The Horse's Mouth" - 2008-03-21 18:23:43 - Graham EllisRuby's rather clever in terms or how it handles string interpretation. Since variable names only start with special characters sometimes, it can't use Perl's trick of making the $ and @ character special in a string. So instead it uses a #{.....} notation. For example:
puts "Tocker is #{tocker}"uses a local variable.
puts "Ticker is #{$ticker}"uses a global variable
and
puts "Sign #{noentrysign.colour} and area #{noentrysign.area}"calls an instance or accessory method on the object. There is a complete example of that code here.