Câu hỏi phỏng vấn Ruby
Câu hỏi

What is the return value for ...

Câu trả lời

To provide an accurate answer to the interview question regarding the return value in Ruby, it's essential to know the specific method or function you are asking about. Ruby, like many programming languages, has numerous methods and functions, each with its own return value based on the operation it performs.

For example, if you are asking about a common method like .length used on a string, the ...

junior

junior

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middle

Why can you safely use a string as a hash key, even though a string is mutable?

senior

Why doesn't Ruby support method overloading?

entry

What can you say about an identifier that begins with a capital letter?

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