Ruby - Class Methods

Question

Ruby

Class Methods

Fill in the blanks to define a class method called "sqr" for the Calc class and call it with the argument 8.

_____1_____ Calc
def _____2_____.sqr x
x*x
end
end
puts Calc _____3_____ 8

correct answer
_____1_____ = class
_____2_____ = self

question
_____3_____ = ?

already search the https://www.sololearn.com/Discuss and google but no enlight for this question

thanks

Answer 1

_____3_____ = .sqr
thanks

Answer 2

If you fail the question in a course, take a look at the comments. But it is even better to study the lesson before the question again. You can find the answer in both.

Answer 3

This is how you call a class method. Imagine a class called Language with a class method called communicate_by which takes one argument.

# Class name, then a dot, then the method

Language.communicate_by("writing")