Complete Javascript Course

Exercises:

Exercise 1: Arithmetic Operations

1. Declare two variables, num1 and num2, and assign them any numerical values. Perform the following operations:
   • Addition
   • Subtraction
   • Multiplication
   • Division
   • Modulus

Exercise 2: Comparison Operations

2. Declare two variables, val1 and val2, and assign them values of different data types. Use comparison operators to check:
   • If they are equal using == and ===
   • If they are not equal using != and !==
   • If val1 is greater than val2
   • If val1 is less than or equal to val2

Exercise 3: Logical Operations

3. Declare three boolean variables, a, b, and c, and assign them values. Use logical operators to evaluate the following expressions:
   • a && b
   • b || c
   • !(a && c)

Exercise 4: Ternary Operator

4. Write a program that determines whether a given number is even or odd using the ternary operator.

Homework:

Homework 1: Expressions Challenge

1. Create a program that calculates the area of a triangle using the formula area = 0.5 * base * height. Prompt the user for the base and height.

Homework 2: Temperature Conversion

2. Write a program that converts temperatures between Celsius and Fahrenheit. Prompt the user for a temperature and the unit (C or F), then perform the conversion.

Homework 3: Conditional Banking

3. Create a simple banking system. Prompt the user for their account balance. If the balance is greater than 1000, give them a 10% bonus; otherwise, charge them a 5% fee. Display the updated balance.

Answers:

Exercise 1: Arithmetic Operations

let num1 = 7;
let num2 = 3;

let addition = num1 + num2;
let subtraction = num1 - num2;
let multiplication = num1 * num2;
let division = num1 / num2;
let modulus = num1 % num2;

Exercise 2: Comparison Operations

let val1 = 10;
let val2 = '10';

let isEqualDoubleEquals = (val1 == val2);
let isEqualTripleEquals = (val1 === val2);
let isNotEqual = (val1 != val2);
let isNotStrictEqual = (val1 !== val2);
let isGreaterThan = (val1 > val2);
let isLessThanOrEqual = (val1 <= val2);

Exercise 3: Logical Operations

let a = true;
let b = false;
let c = true;

let result1 = a && b;
let result2 = b || c;
let result3 = !(a && c);

Exercise 4: Ternary Operator

let number = prompt("Enter a number:");
let result = (number % 2 === 0) ? "Even" : "Odd";
console.log(result);