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added lecture notes and examples from functions lecture
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‎js_functions/lectures/blackjack.js‎

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// the only cards we will be taking are: ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king
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// picure cards are 10 points
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// Other cards are just equal to there number
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// Aces is 11. If there's double ace, they will be 12 (11 + 1)
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// THERE IS NO NUMBER 1 CARD (that is an ace)
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const blackjack = function (card1, card2) {
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let points = 0
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// jack, queen, king are 10 points
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if (card1 === "jack" || card1 === "queen" || card1 === "king") {
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card1 = 10
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} else {
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card1
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}
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if (card2 === "jack" || card2 === "queen" || card2 === "king") {
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card2 = 10
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} else {
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card2
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}
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if ((card1 === "ace" && card2 === 10) || (card2 === "ace" && card1 === 10)) {
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console.log("BLACKJACK!!!")
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// to win, get 21 points (that is a "blackjack")
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} else if (card1 === "ace" && card2 === "ace") {
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console.log("You have 2 aces, which means you have 12 points. Would you like to draw again?")
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//(unless you get 2 aces. one will be 11, one will be 1. So the total is 12)
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} else if (card1 === "ace" && card2 < 10) { // ace is 11 points
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card1 = 11
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points = card1 + card2
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console.log(`You have ${points} points. Would you like to draw again?`)
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} else if (card2 === "ace" && card1 < 10) { // ace is 11 points
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card2 = 11
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points = card1 + card2
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console.log(`You have ${points} points. Would you like to draw again?`)
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} else { // other cards are just equal to there number
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points = card1 + card2
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console.log(`You have ${points} points. Would you like to draw again?`)
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// anything else, total the points and ask the player if the wanna draw
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}
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}
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// blackjack(10, 10)
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// another example (not so DRY)
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// const blackjack = function (card1, card2) {
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// if (card1 === 'ace' && card2 === 'ace') {
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// console.log("You have 12 points, would you like to draw again?");
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// } else if (
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// (card1 === 'jack' && card2 === 'ace') ||
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// (card1 === 'ace' && card2 === 'jack') ||
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// (card1 === 'queen' && card2 === 'ace') ||
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// (card1 === 'ace' && card2 === 'queen') ||
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// (card1 === 'king' && card2 === 'ace') ||
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// (card1 === 'ace' && card2 === 'king') ||
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// (card1 === 'ace' && card2 == 10) ||
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// (card1 == 10 && card2 === 'ace')
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// ) {
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// console.log('You got 21 points, so You win!');
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// } else if (
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// (card1 === 'jack' && card2 === 'jack') ||
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// (card1 === 'jack' && card2 === 'queen') ||
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// (card1 === 'jack' && card2 === 'king') ||
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// (card1 === 'queen' && card2 === 'jack') ||
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// (card1 === 'queen' && card2 === 'queen') ||
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// (card1 === 'queen' && card2 === 'king') ||
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// (card1 === 'king' && card2 === 'jack') ||
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// (card1 === 'king' && card2 === 'queen') ||
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// (card1 === 'king' && card2 === 'king')
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// ) {
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// console.log('You got 20 points. Do you want to draw again?');
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// } else if (card1 === 'ace' && card2 === 'ace') {
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// console.log("You have 2 'aces', so you got 12 points!");
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// } else if (
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// (card1 === 'ace' && card2 == 2) ||
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// (card1 === 'ace' && card2 == 3) ||
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// (card1 === 'ace' && card2 == 4) ||
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// (card1 === 'ace' && card2 == 5) ||
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// (card1 === 'ace' && card2 == 6) ||
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// (card1 === 'ace' && card2 == 7) ||
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// (card1 === 'ace' && card2 == 8) ||
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// (card1 === 'ace' && card2 == 9)
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// ) {
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// console.log(
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// `You got ${11 + Number(card2)} points. Do you want to draw again?`
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// );
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// } else if (
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// (card2 === 'ace' && card1 == 2) ||
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// (card2 === 'ace' && card1 == 3) ||
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// (card2 === 'ace' && card1 == 4) ||
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// (card2 === 'ace' && card1 == 5) ||
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// (card2 === 'ace' && card1 == 6) ||
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// (card2 === 'ace' && card1 == 7) ||
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// (card2 === 'ace' && card1 == 8) ||
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// (card2 === 'ace' && card1 == 9)
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// ) {
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// console.log(
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// `You got ${11 + Number(card1)} points. Do you want to draw again?`
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// );
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// } else {
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// console.log(
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// `You got ${Number(card1) + Number(card2)
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// } points. Do you want to draw again?`
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// );
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// }
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// };
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// blackjack("ace", "10")

‎js_functions/lectures/my_bio_exercise.js‎

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const aboutMe = function(){ // aboutMe is our function name
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console.log("Hello my name is Chingyee.")
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console.log("I live in Vancouver at the moment.")
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console.log("However, I'm from the UK.")
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console.log("I move to Vancouver because I like to snowbaord.")
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// console.logging bio to print inn terminal
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}
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aboutMe(); // this is calling the function. If I don't do this, the code will not run

‎js_functions/lectures/returning_blackjack_points.js‎

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let points = 0
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const blackjack = function (card1, card2) {
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if (card1 === "jack" || card1 === "queen" || card1 === "king") {
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card1 = 10
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} else {
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card1
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}
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if (card2 === "jack" || card2 === "queen" || card2 === "king") {
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card2 = 10
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} else {
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card2
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}
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if ((card1 === "ace" && card2 == 10) || (card2 === "ace" && card1 == 10)) {
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console.log("BLACKJACK!")
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return points = 21
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} else if (card1 === "ace" && card2 === "ace") {
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console.log(`You have 2 aces which is currently 12 points. Would you like to draw again?`)
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return points = 12
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} else if (card1 === "ace" && card2 < 10) {
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card1 = 11
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points = card1 + card2
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console.log(`You have ${points} points. Would you like to draw again?`)
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return points
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} else if (card2 === "ace" && card1 < 10) {
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card2 = 11
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points = card1 + card2
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console.log(`You have ${points} points. Would you like to draw again?`)
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return points
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} else {
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points = card1 + card2
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console.log(`You have ${points} points. Would you like to draw again?`)
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return points
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}
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}
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blackjack("jack", "ace")
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console.log(points)

‎js_functions/lectures/weather_forecast.js‎

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const weatherForecast = function(weather) {
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if (weather === "snowy") {
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console.log(`It's ${weather} today, you should snowboard today!`)
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} else if (weather === "thundering") {
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console.log(`It's ${weather} today, you should stay in and watch a movie!`)
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} else if (weather === "rainy") {
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console.log(`It's ${weather} today, you should Netflix and chill!`)
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} else if (weather === "sunny") {
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console.log(`It's ${weather} today, you should go outside and eat ice cream!`)
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} else {
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console.log(`It's ${weather} today. Have a good day :)`)
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}
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}
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weatherForecast("hot")
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// shorthand version
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// function weatherForecast(weather) {
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// if (weather === "snowy") {
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// console.log(`It's ${weather} today, you should snowboard today!`)
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// } else if (weather === "thundering") {
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// console.log(`It's ${weather} today, you should stay in and watch a movie!`)
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// } else if (weather === "rainy") {
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// console.log(`It's ${weather} today, you should Netflix and chill!`)
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// } else if (weather === "sunny") {
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// console.log(`It's ${weather} today, you should go outside and eat ice cream!`)
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// } else {
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// console.log(`It's ${weather} today. Have a good day :)`)
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// }
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// }
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// weatherForecast("hot")

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