if, else if and else in JavaScript

if, else if and else in JavaScript — a practical guide to JavaScript if else with clear examples you can reuse in real projects.

JavaScript Tutorial Series (23/101). Prefer one article? Read the complete JavaScript tutorial.

Short description

Always use braces for clarity, even one-liners on teams that require them.

if/else

if (temp > 30) {
  console.log('Hot');
} else if (temp > 20) {
  console.log('Warm');
} else {
  console.log('Cool');
}