convert a block into an object. : Code Block « Method « Ruby






convert a block into an object.


# This object is called a proc (procedure). 
# procs preserve their execution environment and pack it along with them. 
# The lambda method is one way to create a proc object. 


prc = lambda { |name| puts "Hello, " + name }
prc.call "Matz!" # => Hello, Matz!

 








Related examples in the same category

1.A block is a section of code that can be passed to a method much like passing an argument.
2.use code blocks with Ruby iterators like each, upto, downto, and times
3.block is invoked in conjunction with a method.
4.Place a space between the pipes ( | ) and the variable names
5.Code Blocks and each method
6.A code block is an anonymous, nameless method or function.
7.define hello so that it contains only a yield statement,
8.print all the elements in an array using the each method followed by a block
9.1.upto(5) { ...code to loop here... }
10.10.downto(5) { ...code to loop here... }
11.0.step(50, 5) { ...code to loop here... }
12.1.upto(5) { |number| puts number }
13.Nested block logics
14.Running a Code Block Periodically
15.block pointer