Question: Does Ruby safe navigation operator (&.) evaluate its parameters when its receiver is nil? For example: logger&.log("Something important happened...") Is the "Some...

h = { data: { user: { value: "John Doe" } } } To assign value to the nested hash, we can use h[:data][:user][:value] = "Bob" However if any part in the middle is missing, it will cause e...

As Ruby 2.3 introduces the Safe navigation operator(&.), a.k.a lonely operator, the behavior on nil object seems odd. nil.nil? # => true nil&.nil? # => nil Is that designed to beha...

I'll explain by example: Elvis Operator (?: ) The "Elvis operator" is a shortening of Java's ternary operator. One instance of where this is handy is for returning a 'sensible default' value...

I have used Safe Navigation Operator for Objects to load on Asynchronous calls and it is pretty amazing. I thought I could reproduce the same for Arrays but it displays a template parse error in my...

The answers to every question I can find (Q1, Q2) regarding Ruby's new safe navigation operator (&.) wrongly declare that obj&.foo is equivalent to obj && obj.foo. It's easy to dem...

Ruby 2.3.0 introduces the safe navigation syntax that eases the nil handling of chained method calls by introducing a new operator that only calls the method if value of previous statement is not n...