JavaScript calculation base examples

 Here are some examples of basic calculations in JavaScript:

1. Addition

let a = 5;
let b = 3;
let sum = a + b;

console.log(sum);  // Output: 8

2. Subtraction

let a = 10;
let b = 4;
let difference = a - b;

console.log(difference);  // Output: 6

3. Multiplication

let a = 6;
let b = 7;
let product = a * b;

console.log(product);  // Output: 42

4. Division

let a = 20;
let b = 4;
let quotient = a / b;

console.log(quotient);  // Output: 5

5. Modulus (Remainder)

let a = 15;
let b = 4;
let remainder = a % b;

console.log(remainder);  // Output: 3

6. Exponentiation

let a = 2;
let b = 3;
let power = a ** b;

console.log(power);  // Output: 8

7. Square Root

let a = 25;
let squareRoot = Math.sqrt(a);

console.log(squareRoot);  // Output: 5

8. Using Parentheses for Order of Operations

let a = 2;
let b = 3;
let c = 4;
let result = (a + b) * c;

console.log(result);  // Output: 20

9. Increment and Decrement

let a = 5;
a++;  // Increment by 1

console.log(a);  // Output: 6

let b = 10;
b--;  // Decrement by 1

console.log(b);  // Output: 9

10. Handling Floating Point Numbers

let a = 0.1;
let b = 0.2;
let sum = a + b;

console.log(sum);  // Output: 0.30000000000000004 (floating-point precision issue)

let roundedSum = sum.toFixed(2);  // Round to 2 decimal places

console.log(roundedSum);  // Output: 0.30


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