Hi everyone!
Is there a way to pass a class as an argument of a function?
Example:
def safe(ex : T? = nil)
yield
rescue ex
puts ex
puts typeof(ex)
end
Hi everyone!
Is there a way to pass a class as an argument of a function?
Example:
def safe(ex : T? = nil)
yield
rescue ex
puts ex
puts typeof(ex)
end
def my_method(klass)
pp klass
end
my_method Int32
Not sure what you’re specifically asking?
And how would you specify a default value?
def my_method(klass = String)
pp klass
end
my_method Int32
my_method
It’s not really any differeant than any other value/default
:o Thank you!
Also for completeness sake, if you wanted to restrict the variable to a specific type of class; see https://crystal-lang.org/reference/syntax_and_semantics/type_restrictions.html#classes-as-restrictions.