Modular-programming

1. Script that uses a function that receives two numbers and calculates the greater. Showing the result.
2. Script that, using a function, receives a letter, determines and displays if the letter is vowel or consonant.
3. Script that through a function allows to store 20 letters in an array. In other function, determines number of vowel and consonant letters stored. In one last function, displays the contents of the array along with the amounts.
4. Script that through a function allows to fill an array of 10 positions with numbers. Another function that reads a number that you want to look up in the array. If it finds it, it replaces it. for his double. In a last function, it shows the array before and after the replacement.