Explain when self.up and self.down method is used?

1

What are differences between ruby and python?

5

What is the difference between nil and false in ruby?

5

What are some advantages of using ruby?

1

Explain me what is the difference between symbol and string?

1

Explain case statement in Ruby?

5

What is concatenating string in Ruby?

3

Tell me how you define instance variable, global variable and class variable in ruby?

1

what is Interpolation in Ruby?

5

What things we can define in the model?

5

Tell me how do you remove nil values in array using ruby?

1

Explain the use of ensure statement in Ruby?

5

What is mvc and why do we use it?

1

Explain the three levels of access control for ruby methods?

1

Explain each of the following operators and how and when they should be used: ==, ===, eql?, Equal?

1