Logical Operators in JavaScript

Logical Operators in JavaScript — a practical guide to JavaScript logical operators with clear examples you can reuse in real projects.

JavaScript Tutorial Series (20/101). Prefer one article? Read the complete JavaScript tutorial.

Short description

&& and || short-circuit — useful for guards.

Logical

const ok = user && user.active;
const name = input ?? 'Guest';
const ready = !loading && !!data;