Given a module Bam, and assuming that method Bam.[] is defined, the [] method can be called with a block in non-syntax sugar form like:
Bam.[]('boom') do |a|
puts a
end
How can I call the [] method with a block in syntax sugar form Bam['boom']?
I tried the following:
Bam['boom'] do |a|
puts a
end
Bam['boom'] {|a|
puts a
}
They raise a syntax error.
I'm not looking for naming alternatives to []. Ruby provides nice syntactic sugar, so I prefer [] over other names.
[] is a shortcut, and it may not be designed to accept blocks.
Either use a traditional method (which in this case is only 1 char longer):
module Bam
def self.get(a)
yield a
end
end
Bam.get('boom') do |a|
puts a
end
or the explicit method syntax Bam.[]('boom').
I assume yours is only an example, as the original method definition doesn't make a lot of sense.
The closest thing I can think of is Ruby's & operator to convert a proc to a block:
block = proc { |a| puts a }
Bam['boom', &block]
Or without a variable:
Bam['boom', &proc { |a| puts a }]
