Values & Types
Type hierarchy
JavaScript for impatient programmers (Book)
Literal Types
| Category | Types | Values |
|---|---|---|
| Primitive | Undefined | undefined |
| Primitive | Null | null |
| Primitive | Boolean | true, false |
| Primitive | Number | -1515, 0b1111, 0o17, 0xf-123.451 23.45, 1.2345e2, 12345E-2 |
| Primitive | String | 'Hello', "Hello", `Hello` |
| Primitive | Symbol | Symbol("number") |
| Object | Array | [][1, 2, 3][1, '2', true, [3, false]]["Alice", "alice@ifpb.edu.br"] |
| Object | Object | {name: "Alice", email: "alice@ifpb.edu"} |
| Object | Map | new Map([[0, 1],[2, 3], [1, 3]]) |
| Object | Set | new Set([1, 1, 1, 2, 2, 3, 4, 5]) |
| Object | Date | new Date() |