Language Expansion

Primitives (dynamic)

• number, bool, string, nil
• runtime type errors are OK

Variables

• let, var = mutable
• const = immutable
• block scoped

Statements

• declarations, assignment, expr
• if/else, while, return, blocks

Functions

• fn name(params) { ... }
• top-level only (no closures yet)

Truthiness

• false and nil are falsey
• everything else is truthy