Ruby Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Ruby Interview Questions

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Can you please explain what is the difference between string and symbol?

Tell me the role of modules and mixins in ruby?

Tell me what is the command to create a migration?

Tell me what is the difference between active support's “hashwithindifferent” and ruby's “hash” ?

Do you know about dig, float and max?

Do you know how ruby looks up a method to invoke?

As you know ruby provides four types of variables. List them and provide a brief explanation for each?

Tell me what are blocks and procs?

Do you know what is the defined operator?

Tell us the types of variables available in ruby class?

Explain me what is the difference between symbol and string?

Tell me what is the role of sub-directory app/controllers and app/helpers?

Please explain what is mvc and why do we use it?

Tell me what is the difference between calling super() and super call?

Tell me how symbol is different from variables?

Un-Answered Questions { Ruby }

Tell us in ruby, it explains about the defined operator?

Explain for loop in Ruby?

Explain Ruby module?

Do you know when self.up and self.down method is used?

Explain next statement in ruby.

How is object methods defined in ruby?

what is the role of sub-directory app/controllers and app/helpers?

How to open a file in Ruby?

what the difference is between false and nil in Ruby?

Tell me what is the difference between calling super() and super call?

Explain about the defined operator in ruby?

Is ruby supports single inheritance/ multiple inheritance or both?

Do you know what is the defined operator?

Explain Ruby if-else statement?

What is the difference between #== and #eql??

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