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Write a small program that asks for a number and it prints out “Hello!” to the user as many times as the number that was entered.
Create an array with 5 numbers and multiply each numbers with 2 and return the result for each number in a new array.
Here is an array with some names:
names = ["John", "Angus", "Jane", "Hannibal"]
Write some code to get all names which start with the letter
J. The result should be stored in a new array.
We have the following method:
def mystery(numbers) numbers.select do |number| number % 3 == 0 end end
What does the method
mystery return if we call it with…
mystery([1, 5, 9, 11, 18])
Write a method which takes an array of numbers as argument and returns the first number that can be divided by 5