# Map: looking up values by a key

[Syntax and values](README.md)

A map connects keys with values. For example, a player can have a name key and a score key. You choose a key instead of a numbered position.

```text
let player = {
    "name": "Pip",
    "score": 0,
    1: "first",
    true: "enabled",
}
```

Map keys may be `Number`, `Text`, or `Boolean`. Values may have any type. Maps
preserve source insertion order for deterministic display. If a literal repeats
an equal key, the later value replaces the earlier value at its original
position.

```text
say player["name"]
set player["score"] = 10
```

The key must exist for both reading and assignment. Assignment does not insert
a missing key.

## Related entries

[Syntax and values](README.md) · [Built-ins](../builtins/README.md) · [Programming guides](../guides/README.md)