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Assignment Operators

Assignment Operators

Introduction

Assignment operators assign values to variables. The basic = operator is extended by compound assignment operators that combine assignment with arithmetic.

Visual Explanation

flowchart LR
    A["x = 5"] --> B["Basic assignment"]
    C["x += 3"] --> D["x = x + 3 → 8"]
    E["x -= 2"] --> F["x = x - 2 → 3"]
    G["x *= 4"] --> H["x = x * 4 → 20"]
    I["x /= 2"] --> J["x = x / 2 → 2.5"]

Operators

let x = 10;

x += 5;   // x = x + 5 → 15
x -= 3;   // x = x - 3 → 12
x *= 2;   // x = x * 2 → 24
x /= 4;   // x = x / 4 → 6
x %= 4;   // x = x % 4 → 2
x **= 3;  // x = x ** 3 → 8

Summary

= assigns a value
Compound operators combine operation with assignment
They make code concise and readable

Further Reading

MDN: Assignment Operators