app.js

// Task 1: Add two numbers and display the result
var num1 = 5;
var num2 = 3;
var sum = num1 + num2;
document.write('Sum of ' + num1 + " and " + num2 + ' is ' + sum);
console.log('Sum of ' + num1 + " and " + num2 + ' is ' + sum);

// Task 2: Subtract, multiply, divide, and modulus find the remainder
var subtraction = num1 - num2;
var multiplication = num1 * num2;
var division = num1 / num2;
var modulus = num1 % num2;

document.write('subtraction:' + subtraction);
console.log('subtraction:' + subtraction);
document.write('multiplication:' + multiplication);
console.log('multiplication:' + multiplication);
document.write('division:' + division);
console.log('division:' + division);
document.write('modulus:' + modulus);
console.log('modulus:' + modulus);

// Task 3:
let myVariable; // Declare a variable
console.log('Value after variable declaration is:' + myVariable);
document.write('Value after variable declaration is:' + myVariable);

myVariable = 5; // Initialize the variable
console.log('Initial value: ' + myVariable);
document.write('Initial value: ' + myVariable);

myVariable++; // Increment the variable
console.log('Value after increment is:' + myVariable);
document.write('Value after increment is:' + myVariable);

myVariable += 7; // Add 7 to the variable
console.log('Value after addition is:' + myVariable);
document.write('Value after addition is:' + myVariable);

myVariable--; // Decrement the variable
document.write('Value after decrement is: ' + myVariable);

let remainderAfterDivision = myVariable % 3; // Calculate remainder
console.log('The remainder is: ' + remainderAfterDivision);
document.write('The remainder is: ' + remainderAfterDivision);


// Store the ticket price
var ticketPrice = 600;

// Calculate the cost of buying 5 tickets
var numberOfTickets = 5;
var totalCost = ticketPrice * numberOfTickets;

// Example output
console.log('The cost of buying' + numberOfTickets + 'tickets is ' + totalCost + 'PKR.');
document.write('The cost of buying' + numberOfTickets + 'tickets is ' + totalCost + 'PKR.');

var table = 4
var one = 1
var two = 2
var three = 3
var four = 4
var five = 5
var six = 6
var seven = 7
var eight = 8
var nine = 9
var ten = 10

console.log(table + ' * ' + one + ' = ' + table * one)
document.write(table + ' * ' + one + ' = ' + table * one)
console.log(table + ' * ' + two + ' = ' + table * two)
document.write(table + ' * ' + two + ' = ' + table * two)
console.log(table + ' * ' + three + ' = ' + table * three)
document.write(table + ' * ' + three + ' = ' + table * three)
console.log(table + ' * ' + four + ' = ' + table * four)
document.write(table + ' * ' + four + ' = ' + table * four)
console.log(table + ' * ' + five + ' = ' + table * five)
document.write(table + ' * ' + five + ' = ' + table * five)
console.log(table + ' * ' + six + ' = ' + table * six)
document.write(table + ' * ' + six + ' = ' + table * six)
console.log(table + ' * ' + seven + ' = ' + table * seven)
document.write(table + ' * ' + seven + ' = ' + table * seven)
console.log(table + ' * ' + eight + ' = ' + table * eight)
document.write(table + ' * ' + eight + ' = ' + table * eight)
console.log(table + ' * ' + nine + ' = ' + table * nine)
document.write(table + ' * ' + nine + ' = ' + table * nine)
console.log(table + ' * ' + ten + ' = ' + table * ten)
document.write(table + ' * ' + ten + ' = ' + table * ten)


// Step 1: Store a Celsius temperature into a variable
var celsiusTemp = 30;

// Step 2: Convert it to Fahrenheit & output
var fahrenheitTemp = (celsiusTemp * 9 / 5) + 32;
console.log(celsiusTemp + '°C is' + fahrenheitTemp.toFixed(2) + '°F');

// Step 3: Now store a Fahrenheit temperature into a variable
var fahrenheitTemp2 = 86;

// Step 4: Convert it to Celsius & output
var celsiusTemp2 = (fahrenheitTemp2 - 32) * 5 / 9;
console.log(fahrenheitTemp2.toFixed(2) + '°F is' + celsiusTemp2.toFixed(2) + '°C');

var car1 = 200;
var boykides2 = 500;
var totalcost = car1 + boykides2;
document.write("total cost of your order is" + totalcost);
console.log("total cost of your order is" + totalcost);

// totalmarks = prompt('Total marks');
// obtainmarks = prompt('obtain marks');
// alert((obtainmarks / totalmarks) * 100)


var sudi = 74;
var us = 278;
// sudiry = prompt('please add the Saudi Riyal\rconvert into PKR');
// alert(sudiry * sudi);
// usry = prompt('please add the US Dollar\rconvert into PKR');
// alert(usry * us);

var exp = (5 * 10) / 2;
console.log(exp);
document.write(exp);

// Get the current year
var currentYear = 2024;//new Date().getFullYear()

// Assume the birth year (you can replace this with the actual birth year)
var birthYear = 1990;

// Calculate the age based on the stored values
var age1 = currentYear - birthYear;
var age2 = age1 - 1; // The second possible age

// Output the results
console.log('They are either' + age1 + 'or' + age2 + 'years old.');

var radius = 20;
var circumference = 2 * 3.142 * radius;
var area = 3.142 * (radius * 2);
console.log(area);
console.log(circumference);

var favoritesnack = 'Lays';
var currentage = 15;
var maximumage = 65;
var estimatedamountperday = 3;
var Cal = (maximumage - currentage) * estimatedamountperday;

//By By//