TypeScript Arithmetic Operators

Introduction

In this chapter, we will explore arithmetic operators in TypeScript. Arithmetic operators are used to perform mathematical operations such as addition, subtraction, multiplication, division, and more.

Table of Contents

1. Definition
2. Types of Arithmetic Operators
   • Addition (+)
   • Subtraction (-)
   • Multiplication (*)
   • Division (/)
   • Modulus (%)
   • Increment (++)
   • Decrement (--)
3. Examples and Output
4. Conclusion

Definition

Arithmetic operators in TypeScript are symbols used to perform mathematical operations on numeric values. They can be used with both integer and floating-point numbers.

Types of Arithmetic Operators

Addition (+)

Definition

The addition operator adds two operands.

Syntax

let result = operand1 + operand2; 

Example

This example demonstrates the use of the addition operator.

let a: number = 10; let b: number = 5; let addition = a + b; console.log(addition); 

Output

15 

Subtraction (-)

Definition

The subtraction operator subtracts the second operand from the first.

Syntax

let result = operand1 - operand2; 

Example

This example demonstrates the use of the subtraction operator.

let a: number = 10; let b: number = 5; let subtraction = a - b; console.log(subtraction); 

Output

5 

Multiplication (*)

Definition

The multiplication operator multiplies two operands.

Syntax

let result = operand1 * operand2; 

Example

This example demonstrates the use of the multiplication operator.

let a: number = 10; let b: number = 5; let multiplication = a * b; console.log(multiplication); 

Output

50 

Division (/)

Definition

The division operator divides the first operand by the second.

Syntax

let result = operand1 / operand2; 

Example

This example demonstrates the use of the division operator.

let a: number = 10; let b: number = 5; let division = a / b; console.log(division); 

Output

2 

Modulus (%)

Definition

The modulus operator returns the remainder of the division of the first operand by the second.

Syntax

let result = operand1 % operand2; 

Example

This example demonstrates the use of the modulus operator.

let a: number = 10; let b: number = 3; let modulus = a % b; console.log(modulus); 

Output

1 

Increment (++)

Definition

The increment operator increases the value of the operand by 1.

Syntax

operand++; 

Example

This example demonstrates the use of the increment operator.

let a: number = 10; a++; console.log(a); 

Output

11 

Decrement (--)

Definition

The decrement operator decreases the value of the operand by 1.

Syntax

operand--; 

Example

This example demonstrates the use of the decrement operator.

let a: number = 10; a--; console.log(a); 

Output

9 

Examples and Output

Example 1: Using Arithmetic Operators

In this example, we will use all the arithmetic operators to perform different operations.

TypeScript Code (src/index.ts)

let a: number = 10; let b: number = 5; // Addition let addition = a + b; console.log("Addition: " + addition); // Output: 15 // Subtraction let subtraction = a - b; console.log("Subtraction: " + subtraction); // Output: 5 // Multiplication let multiplication = a * b; console.log("Multiplication: " + multiplication); // Output: 50 // Division let division = a / b; console.log("Division: " + division); // Output: 2 // Modulus let modulus = a % b; console.log("Modulus: " + modulus); // Output: 0 // Increment a++; console.log("Increment: " + a); // Output: 11 // Decrement b--; console.log("Decrement: " + b); // Output: 4 

Compiling to JavaScript

To compile the TypeScript code to JavaScript, run the TypeScript compiler:

tsc src/index.ts 

Output in JavaScript (src/index.js)

var a = 10; var b = 5; // Addition var addition = a + b; console.log("Addition: " + addition); // Output: 15 // Subtraction var subtraction = a - b; console.log("Subtraction: " + subtraction); // Output: 5 // Multiplication var multiplication = a * b; console.log("Multiplication: " + multiplication); // Output: 50 // Division var division = a / b; console.log("Division: " + division); // Output: 2 // Modulus var modulus = a % b; console.log("Modulus: " + modulus); // Output: 0 // Increment a++; console.log("Increment: " + a); // Output: 11 // Decrement b--; console.log("Decrement: " + b); // Output: 4 

Running the JavaScript

To see the output of the compiled JavaScript code, run the JavaScript file using Node.js:

node src/index.js 

Conclusion

In this chapter, we covered arithmetic operators in TypeScript, including addition, subtraction, multiplication, division, modulus, increment, and decrement.