SplitScript reference / Map<K, V> / containsKey

Map<K, V>.containsKey

Method

Map<K, V>.containsKey(key: K) -> bool where K: Equatable

Reports whether an equal key is present.

Values do not participate in this lookup.

Parameters

• key: Key to find.

Effects: pure

Runtime behavior: available everywhere; synchronous

Examples

Check a route key

let routes = Map.new<String, u32>()
routes["Atrium"] = 12
let known = routes.containsKey("Atrium")