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Type Alias: Primitive

Primitive = string | number | boolean | null

JS-compatible primitive values (serializable, no object types).

undefined is intentionally excluded: it represents JS "uninitialized" semantics and should never appear as a data value in spreadsheets. Use null to express "value is absent" — in Google Sheets, empty cells are treated as null, not undefined.

Example

TypeScript
const value: Primitive = "Alice";
const missing: Primitive = null;

const values: Primitive[] = ["text", 42, true, null];