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Karan 2021-11-25 19:50:57 +05:30 committed by GitHub
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Chapter 4/exercises
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//Exercise 1
/*
const test = false;
console.log((test));
if(test){
console.log("Its True");
}
if(!test){
console.log("False now");
}
//Exercise 2
let age = 10;
let cost = 0;
let message;
if (age < 3) {
cost = 0;
message = "Access is free under three.";
} else if (age >= 3 && age < 12) {
cost = 5;
message ="With the child discount, the fee is 5 dollars";
} else if (age >= 12 && age < 65) {
cost = 10;
message ="A regular ticket costs 10 dollars.";
} else {
cost = 7;
message ="A ticket is 7 dollars.";
}
console.log(message);
console.log("Your Total cost "+cost);
let age = prompt("How old are you?");
age = Number(age);
let message;
if(age >= 21){
message = "You can enter and drink.";
}else if(age >= 19){
message = "You can enter but not drink.";
}else{
message = "You are not allowed in!";
}
console.log(message);
//Exercise 3
const id = true;
const message = (id) ? "Allowed In" : "Denied Entry";
console.log(message);
//Exercise 4
let prize = prompt("Pick a number 0-10");
prize = Number(prize);
let output = "My Selection: ";
switch (prize){
case 0:
output += "Gold ";
case 1:
output += "Coin ";
break;
case 2:
output += "Big ";
case 3:
output += "Box of ";
case 4:
output += "Silver ";
case 5:
output += "Bricks ";
break;
default:
output += "Sorry Try Again";
}
console.log(output);
//Project 1
let answer = "Something went wrong";
let question = prompt("Ask me anything");
const randomNumber = Math.floor(Math.random() * 6);
switch (randomNumber) {
case 0:
answer = "It will work out";
break;
case 1:
answer = "Maybe maybe not";
break;
case 2:
answer = "Probably not";
break;
case 3:
answer = "Highly likely";
break;
default:
answer = "I don"t know about that";
}
let output = "You asked me " + question + ". I think that " + answer;
console.log(output);
const myArr = ["Rock", "Paper", "Scissors"];
let computer = Math.floor(Math.random() * 3);
let player = Math.floor(Math.random() * 3);
let message = "player " + myArr[player] + " vs computer " + myArr[computer] + " ";
if (player === computer) {
message += "its a tie";
} else if (player > computer) {
if (computer == 0 && player == 2) {
message += "Computer Wins";
} else {
message += "Player Wins";
}
} else {
if (computer == 2 && player == 0) {
message += "Player Wins";
} else {
message += "Computer Wins";
}
}
console.log(message);
//Question 1
const q = 1;
switch (q) {
case "1":
answer = "one";
case 1:
answer = 1;
case 2:
answer = "this is the one";
break;
default:
answer = "not working";
}
console.log(answer);
let myTime = 9;
let output;
if (myTime >= 8 && myTime < 12) {
output = "Wake up its morning";
} else if (myTime >= 12 && myTime < 13) {
output = "go to Lunch";
} else if (myTime >= 13 && myTime <= 16) {
output = "Go to work";
} else if (myTime > 16 && myTime < 20) {
output = "Dinner Time";
} else if (myTime >= 22) {
output = "Time to go to sleep";
} else {
output = "You should be sleeping";
}
console.log(output);
let today = prompt("pick a number");
today = Number(today);
let output;
switch (today) {
case 0:
output = "Sunday";
break;
case 1:
output = "Monday";
break;
case 2:
output = "Tuesday";
break;
case 3:
output = "Wednesday";
break;
case 4:
output = "Thursday";
break;
case 5:
output = "Friday";
break;
case 6:
output = "Saturday";
break;
default:
output = "Not found";
}
console.log("Today is "+output);
let val = 100;
let message = (val > 100) ? "${val} was greater than 100" : "${val} was LESS or Equal to 100";
console.log(message);
let check = (val % 2) ? "Odd" : "Even";
check = "${val} is ${check}";
console.log(check);
let a = 5;
let b = 10;
let c = 20;
let d = 30;
console.log(a > b || b > a);
console.log(a > b && b > a);
console.log(d > b || b > a);
console.log(d > b && b > a);
let age = prompt("How old are you?");
age = Number(age);
if (!age) {
age = prompt("Enter a Number?");
}
let message;
if (age >= 21) {
message = "You are " + age + " and allowed to come in and drink.";
} else if (age >= 18) {
message = "You are " + age + " and allowed to come in but NOT drink.";
} else {
message = "You are NOT allowed in. Sorry you are only " + age + " ";
}
console.log(message);
let val = prompt("what number?");
val = Number(val);
let num = 100;
let message = "nothing";
if (val > num) {
message = val + " was greater than " + num;
} else if (val == num) {
message = val + " was equal to " + num;
} else {
message = val + " is less than " + num;
}
console.log(message);
let person = prompt("Enter a name?");
let message;
switch (person) {
case "John" :
case "Larry" :
case "Jane" :
case "Laurence" :
message = person +" is my friend";
break;
default :
message = "I don\"t know "+person;
}
console.log(message);
*/
const userNames = ["Mike", "John", "Larry"];
const userInput = "John";
let htmlOutput = "";
if (userNames.indexOf(userInput) > -1) {
htmlOutput = "Welcome, that is a user";
} else {
htmlOutput = "Denied, was not a usernot true ";
}
console.log(htmlOutput + ":, " + userInput);