TypeScript Assignment Operators

Assignment operators are used to assign values to variables in TypeScript. They can also combine assignment with mathematical or logical operations, making the code shorter and easier to read.

List of Assignment Operators

= (Simple Assignment)

Assigns the value on the right to the variable on the left.

let a = 5;
console.log(a); // Output: 5

+= (Add and Assign)

Adds the value on the right to the variable on the left, then assigns the result to the variable.

let a = 5;
a += 3; // Same as a = a + 3
console.log(a); // Output: 8

-= (Subtract and Assign)

Subtracts the value on the right from the variable on the left, then assigns the result to the variable.

let a = 5;
a -= 2; // Same as a = a - 2
console.log(a); // Output: 3

*= (Multiply and Assign)

Multiplies the variable by the value on the right, then assigns the result to the variable.

let a = 5;
a *= 4; // Same as a = a * 4
console.log(a); // Output: 20

/= (Divide and Assign)

Divides the variable by the value on the right, then assigns the result to the variable.

let a = 10;
a /= 2; // Same as a = a / 2
console.log(a); // Output: 5

%= (Modulus and Assign)

Finds the remainder when the variable is divided by the value on the right, then assigns the result to the variable.

let a = 10;
a %= 3; // Same as a = a % 3
console.log(a); // Output: 1

**= (Exponentiation and Assign)

Raises the variable to the power of the value on the right, then assigns the result to the variable.

let a = 2;
a **= 3; // Same as a = a ** 3 (2 to the power of 3)
console.log(a); // Output: 8

Simple Assignment Operator

Compound Assignment Operators

These operators perform a calculation and then assign the result to the variable.

Bitwise Assignment Operators

These operators perform bitwise calculations and assign the result to the variable.

Logical Assignment Operators

These operators combine logical operations with assignments (introduced in modern JavaScript and TypeScript).

Summary

Assignment operators make it easy to perform calculations and assign values in a single step. They are useful for writing concise and efficient code. By understanding these operators, you can simplify your programming tasks and make your TypeScript code more readable.