Functions are very powerful.

• You can write more than one line of code inside of functions.
• You can use variables inside of functions.
• You can call other functions inside of functions!

function getAgeInDays(age) {
  return age * 365;
}

function createCreeting(name, age) {
  var ageInDays = getAgeInDays(age);
  var message =
    "My Name is " + name + " and I was born over " + ageInDays + " days ago!";
  return message;
}

• In exercise.js write a program that displays the percentage of students and mentors in the group
• The percentage should be rounded to the nearest whole number (use a search engine to find out how to this with JavaScript)
• You should have one function that calculates the percentage, and one function that creates a message

Consider: should your percentage function do the rounding, or should it be done when the greeting is created?

Percentage students: 65%
Percentage mentors: 35%

• In exercise2.js you have been provided with the names of some mentors. Write a program that logs a shouty greeting to each one.
• Your program should include a function that spells their name in uppercase, and a function that creates a shouty greeting.
• Log each greeting to the console.

HELLO DANIEL
HELLO IRINA
HELLO MIMI
HELLO ROB
HELLO YOHANNES