Send

• Send can also be used to actually call a private method.

When a method is called in Ruby:

• A message containing the method’s name is sent to the object.
• If that method exists on the object, the object calls it.

Calling send on the object

class Tiger

def initialize(name:)

@name = name

end

def return_tiger

@name

end

end

tiger = Tiger.new(name: "Jiba")

puts tiger.return_tiger

puts tiger.send("return_tiger")

Output:

$ruby main.rb

Jiba

Jiba

Calling sending without the object

[4] pry(main)> def hello

[4] pry(main)* p "hello world"

[4] pry(main)* end

=> :hello

# As a symbol

[5] pry(main)> send(:hello)

"hello world"

=> "hello world"

# As a string

[6] pry(main)> send("hello")

"hello world"

=> "hello world"

Resources:

• https://medium.com/ruby-daily/53-ruby-on-rails-interview-questions-and-answers-eb99eed1aeb7

Check:

• respond_to