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functions.js
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functions.js
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//Simple Calculator
function add() {
const numA = Number(document.getElementById("num1-el").value);
const numB = Number(document.getElementById("num2-el").value);
document.getElementById("sum-el").textContent = `Sum: ${numA + numB}`;
}
function subtract() {
const numA = Number(document.getElementById("num1-el").value);
const numB = Number(document.getElementById("num2-el").value);
document.getElementById("sum-el").textContent = `Difference: ${numA - numB}`;
}
function divide() {
const numA = Number(document.getElementById("num1-el").value);
const numB = Number(document.getElementById("num2-el").value);
document.getElementById("sum-el").textContent = `Quotient: ${numA / numB}`;
}
function multiply() {
const numA = Number(document.getElementById("num1-el").value);
const numB = Number(document.getElementById("num2-el").value);
document.getElementById("sum-el").textContent = `Product: ${numA * numB}`;
}
//Blackjack
let hasBlackJack = false;
let isAlive = true;
let message = "";
let messageEl = document.getElementById("message-el");
let sum = 0;
let sumEl = document.getElementById("cards-sum-el");
let cardsEl = document.getElementById("cards-el");
function check () {
if (isAlive === true && hasBlackJack === false) {
message = "Do you want to draw a new card?";
} else if (isAlive === true && hasBlackJack === true) {
message = "You've got Blackjack!";
document.getElementById("hit-btn").disabled = true;
document.getElementById("stay-btn").disabled = true;
} else if (isAlive === false) {
message = "You're out of the game! Click the Deal button to start a new round.";
document.getElementById("hit-btn").disabled = true;
document.getElementById("stay-btn").disabled = true;
}
messageEl.textContent = message;
}
function deal() {
const firstCard = generateCard();
const secondCard = generateCard();
sum = firstCard + secondCard;
cardsEl.textContent = `Cards: ${firstCard} ${secondCard}`;
sumEl.textContent = `Sum: ${sum}`;
document.getElementById("deal-btn").disabled = true;
document.getElementById("hit-btn").disabled = false;
document.getElementById("stay-btn").disabled = false;
if (sum < 21) {
check();
} else if (sum === 21) {
hasBlackJack = true;
check();
} else {
isAlive = false;
check();
}
}
function hit() {
let newCard = generateCard();
sum += newCard;
sumEl.textContent = `Sum: ${sum}`;
cardsEl.textContent += ` ${newCard} `;
if (sum < 21) {
check();
} else if (sum === 21) {
hasBlackJack = true;
check();
} else {
isAlive = false;
check();
}
}
function stay() {
}
function reset() {
hasBlackJack = false;
isAlive = true;
message = "";
sum = 0;
document.getElementById("deal-btn").disabled = false;
document.getElementById("hit-btn").disabled = true;
document.getElementById("stay-btn").disabled = true;
messageEl.textContent = "Want to play a round?";
cardsEl.textContent = "Cards:";
sumEl.textContent = "Sum:";
}
function generateCard () {
return Math.floor(Math.random() * 10) + 2;
}