JavaScript JS Introduction JS Syntax & Comments

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JavaScript Beginner 1 min read

JS Syntax & Comments

JS Syntax

JavaScript is case-sensitive. Semicolons are optional but recommended.

Comments

Single-line: // comment
Multi-line: /* comment */

Naming

Variables: camelCase
Constants: UPPER_SNAKE
Classes: PascalCase

Example

// Single-line comment
let userName = 'Alice'; // camelCase
const MAX = 100;       // UPPER_SNAKE
class UserProfile {}   // PascalCase

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