exercises.js

console.log("main.js linked!");

////////////////////////////////////////////////
// Part 1: Linking
////////////////////////////////////////////////

// Link this JavaScript file to an HTML document.
// You'll know the file is correctly linked if the console says
// "main.js linked!"

////////////////////////////////////////////////
// Part 2: Working With Data Structures
////////////////////////////////////////////////

const album1 = {
  title: "Talking Heads",
  albumDetails: {
    released: new Date("September 16, 1977"),
    label:    "Sire",
    formats:  ["LP"]
  }
};

// 1. Retrieve the string "Sire" from album1, and save it in a sensibly named
//    variable.

// 2. Change the title of album1 from "Talking Heads" to "Talking Heads: 77"

const album2 = {
  title: "More Songs About Buildings and Food",
  albumDetails: {
    released: new Date("July 14, 1978"),
    label:    "Sire",
    formats:  ["LP", "8-track"]
  }
};

const album3 = {
  title: "Fear of Music",
  albumDetails: {
    released: "August 3, 1979",
    label:    "Sire",
    formats:  ["Cassette"]
  }
};

// 3. Access album2's formats array and use an array method to add "LP" to
//    album3's formats
// Check out the Array.push method!

// 4. Change the release date of album3 from a string into a Date object
// Look ahead to album4 for a clue!

const album4 = {
  title: "Remain in Light",
  albumDetails: {
    released: new Date("October 8, 1980"),
    formats: ["Cassette", "LP"]
  }
};

// 5. Add the label "Sire" to album4's details

const album5 = {
  title: "Speaking in Tongues",
  albumDetails: {
    released: new Date("May 31, 1983"),
    label:    "Sire"
  }
};

// 6. Add a 'formats' array to album 5 and add "CD", "Cassette", and "LP"

const album6 = {
  title: "Little Creatures",
  albumDetails: {
    released: new Date("June 10, 1985"),
    labels:   ["Sire", "emi"],
    formats:  ["CD", "cassette", "LP"]
  }
};

// 7. Make the label "emi" in album6 all uppercase
// google how to make a string uppercase in js!

const album7 = {
  title: "True Stories",
  albumDetails: {
    released: new Date("October 7, 1986"),
    labels:   "Sire, EMI",
    formats:  ["CD", "cassette", "LP"]
  }
};

// 8. Convert album7's 'labels' property from the string value
//    "Sire, EMI" into the array: ["Sire", "EMI"]
// google js array split!

const album8 = {
  title: "Naked",
  albumDetails: {
    released: new Date("March 15, 1988"),
    label:    ["Sire", "EMI"],
    formats:  ["CD", "cassette", "LP"]
  }
};

const talkingHeadsAlbums = [
  album1,
  album2,
  album3,
  album4,
  album5,
  album6,
  album7,
  album8
];

/////////////////////////////////////////////////////
// Part 3: More Tasks About Datatypes and Structures
/////////////////////////////////////////////////////

// 1. Create an object literal called `band`.

// 2. Give it the property `name` and set it to "Talking Heads"

// 3. Give it the property `members` and set it to an array with a single
//    string, "David Byrne", in it.

// 4. Give it the property `albums` and set it to the array stored in the
//    variable talkingHeadsAlbums

// 5. Add "Tiny Weymouth", "Chris Franz" and "Jerry Harrison" to the members
//    array.

////////////////////////////////////////////////
// Part 4: Conditional Logic
////////////////////////////////////////////////

// 1. Write a conditional to console.log "Talking Heads were a prolific band"
//    if the Talking Heads have 6 albums or more. Otherwise, console.log
//    "Talking heads didn't have much output." Use the array of albums
//    talkingHeadsAlbums above.

// 2. Write a conditional to check if the number of albums in
//    talkingHeadsAlbums is odd or even, and then console.log
//    "The number X is odd" or "The number X is even" with X being
//    the number of albums.

// 3. Write conditionals to check if the number of albums in
//    talkingHeadsAlbums is divisible by either 2 or 3, and then
//    console.log one of:
//    - "The number Y is divisible by 2",
//    - "The number Y is divisible by 3",
//    - "The number Y is divisible by 2 and 3", or
//    - "The number Y is not divisible by 2 or 3",
//
//    with Y being the number of albums.

// 4. Check your logic above against the numbers: 0, 1, 2, 6, 7, and 9.
//    Make sure it always works!

/////////////////////////////////////////////////////
// Part 5: For Loops
/////////////////////////////////////////////////////

// 1. Use a for loop to print out the name of each Talking Heads album

// 2. Create a variable called `sireTally`, and set it to the integer value 0.
//    Then use a for-loop to go through all the Talking Heads albums,
//    incrementing sireTally if the album was released under the "Sire" label.
//
//    Warning: some albums have a property `.label`, which is a string, and some
//    have `.labels`, which is an Array!

/////////////////////////////////////////////////////
// Part 7: More Tasks With Conditionals and Iteration
/////////////////////////////////////////////////////

// 1. There is a Talking Heads concert at DAR Constitutional Hall, and
//    the attending dignitaries will be sitting in three sections:
//    "left", "center", and "right".
//
//    The event is "open seating" (guests can choose any seat they want),
//    however they must have a *premium ticket* to sit in first 3 rows of
//    their section. *Standard ticket*-holders must sit behind row 3.
//    Using the hardcoded list of dignitaries below, print out
//    appropriate seating instructions.
//
//    Example:
//    const ticket1 = {
//      name: "Madeline Albright",
//      section: "right",
//      type: "premium",
//      seats: 1
//    };
//    const ticket1 = {
//      name: "Newt Gingrich",
//      section: "center",
//      type: "standard",
//      seats: 4
//    };
//
//    Messages:
//    "Welcome, Madeline Albright! You may sit anywhere in the first 3 rows of the right section."
//    "Welcome, Newt Gingrich! You and your party may sit anywhere except first 3 rows of the center section.
//     Please be sure to leave no seats between you."

const tickets = [
  {name: "Boutros Boutros-Ghali", section: "center", type: "premium",  seats: 1},
  {name: "Ann Richards",          section: "left",   type: "premium",  seats: 2},
  {name: "George Will",           section: "left",   type: "standard", seats: 2},
  {name: "Marion Barry",          section: "center", type: "standard", seats: 8},
  {name: "Warren Christopher",    section: "right",  type: "standard", seats: 1},
  {name: "Bob Dole",              section: "center", type: "premium",  seats: 3}
];

// 2. There is a concert at the LA County Fairgrounds by the Southland's
//    hottest Talking Heads tribute band for zombie afficianados,
//    "The Wailing Deads" (known as "The Walking Deads" until they received
//    a cease-and-desist). Ticket prices are $50, $65, or $90 for
//    standard, premier, and premier plus seating. Premier plus tickets
//    receive free drinks.
//
//    Discounted patrons (seniors, veterans, and students) receive a free
//    $10 drinks voucher, while regular patrons receive none. Premier
//    plus seats only cost $80 for discounted patrons.
//
//    Everyone who dresses as a zombie in a giant business suit will
//    receive a $10 drinks voucher.
//
//    Based on a ticket request in the form of an object, print out
//    a message for the given ticket.
//
//    Treat missing data as an automatic false.
//
//    Examples:
//    - {amount: 50.00, discount: true,  zombie: false}  => "STANDARD $10 DRINKS"
//    - {amount: 65.00, discount: false, zombie: false}  => "PREMIER NO DRINKS"
//    - {amount: 80.00, discount: false}                 => "ERROR: INVALID TICKET"
//    - {amount: 80.00, discount: true}                  => "PREMIER PLUS"
//    - {amount: 90.00}                                  => "PREMIER PLUS"
//    - {amount: 50.00, discount: true,  zombie: true}   => "STANDARD $20 DRINKS"

const tickets = [
  {amount: 50.00, discount: false, zombie: true},
  {amount: 60.00, discount: true,  zombie: false},
  {amount: 50.00},
  {amount: 65.00, discount: true,  zombie: true},
  {amount: 90.00, discount: false},
  {amount: 50.00, discount: true,  zombie: false},
  {amount: 50.00, zombie:   true},
  {amount: 80.00, discount: true},
  {amount: 90.00},
  {amount: 50.00, discount: true}
];