Ruby Programming · all questions

Arrays, Hashes and Strings in Ruby
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Q21

What does the `include?` method do when used with strings in Ruby?

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Q22

In Ruby, what does the `capitalize` method do when used with strings?

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Q23

In Ruby, which method is used to concatenate two strings?

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Q24

What is the result of the expression `"hello".length` in Ruby?

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Q25

What does the `chomp` method do when used with strings in Ruby?

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Q26

Which method in Ruby is used to add an element to the end of an array?

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Q27

What does the pop method do when called on an array in Ruby?

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Q28

In Ruby, which symbol is used to access the value associated with a key in a hash?

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Q29

What method in Ruby is used to join the elements of an array into a single string?

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Q30

Which of the following methods is used to remove a key-value pair from a hash in Ruby?

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Q31

What does the `split` method do when called on a string in Ruby?

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Q32

In Ruby, how can you add a key-value pair to an existing hash?

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Q33

What does the `each_key` method do when called on a hash in Ruby?

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Q34

Which of the following methods is used to check if a key exists in a hash in Ruby?

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Q35

In Ruby, which method is used to convert a string to uppercase?

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Q36

What does the `reverse` method do when called on a string in Ruby?

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Q37

Arrays can be used to store multiple values in one single variable.

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Q38

What is the output of the given code?

string_array = ["a","e","i","o","u"]
boolean_array = ["True","False"]
puts string_array[3]
puts boolean_array[1]

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Q39

What will be the output of the following?

array1 = [1,2,3]
array2 = [0,0,0]
if array1 >= array2
print "Greater or equal"
else 
    print "Not equal"
end

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Q40

What is the output of the given code?

string_array = ["a","e","i","o","u"]
print string_array[3]

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