// GWHS - 12/22 Handout

// This is a one line javascript comment
/* And so is this one,
   But it can go many lines */

// Takes no parameters and returns nothing
function sayHi() {
    console.log("Hi!");
}

sayHi();
/* Answer:
    Hi!
*/


// Takes no parameters but returns something
function getHelloWorld() {
    return "Hello world.";
}

console.log(getHelloWorld());
/* Answer:
    Hello world.
*/


// Takes one parameter and returns nothing
function logMyName(name) {
    console.log(name);
}

logMyName("Chris");
/* Answer:
    Chris
*/


// Takes one parameter and returns a new string
function returnMyExcitingName(name) {
    // We can use the plus sign to add strings together
    return name + "!";
}

console.log(returnMyExcitingName("Christopher"));
/* Answer:
    Christopher!
*/

// Takes two parameters and returns a new string
function returnMyNameAndAge(name, age) {
    return "I am " + name + " and I am " + age;
}

console.log(returnMyNameAndAge("Christopher", 33));
/* Answer:
    I am Christopher and I am 33
*/


// This function uses some of our other functions
function logMyAgeAndNameExclaimed(myName) {
    // We can make a new variable that starts as an empty string
    var newString = '';
    /* This next line is important to understand -
        make sure you can explain it or ask for clarification */

    newString = returnMyNameAndAge(returnMyExcitingName(myName), 33.5);
    console.log(newString);
}

logMyAgeAndNameExclaimed("Jesse");
/* Answer:
    I am Jesse! and I am 33.5
*/


// This function takes one parameter (also can be called an argument)
// And uses an if statement in it’s body
function isMyAgeOld(age) {
    if (age < 30) {
        return "You’re a youngster!";
    } else {
        return "You guys like MySpace?!";
    }
}

var age = 27;
console.log(isMyAgeOld(age));
/* Answer:
    You’re a youngster!
*/