Introduction to Ruby and Object Oriented Programming > Ruby Fundamentals

Quiz - 8. Arrays

Q1. Check the ways in which we define array.

array[1] = 'test'
array.first = 'test'
array = Array.new
array = []

Q2. How can we find the length of an array?

array.size
array.length
array.volume
array.count

Q3. Following are the ways we can fetch data from array

array[0]
array[2+3]
array[2+3]
array.last

Q4. Check the correct statements

array.include?(var) checks if the var is present in the array.
array.join('-') concatinates array values with a '-' and gives a string.
array.index(var) provides the position of var starting from 1.
array.push(var) and array << var, both are equivalent.
array.sample gives index of array in random order.

Q5. Array can be a combination of

integers and strings.
arrays and objects
combination of any valid data type in ruby.
only same type of data.