Function cache

Wrapes an input stream to cache values, optionally providing an initial value

Param: r

Param: initialValue

Returns

cache<TValue, RT extends Reactive<TValue>>(
r: RT,
initialValue: TValue,
): CacheStream<TValue> & { last: () => TValue } & RT
Wraps an input stream to cache values, and provide an initial value
Type Parameters
- TValue
- RTextendsReactive<TValue>
Parameters
- r: RT
  Input stream
- initialValue: TValue
  Initial value
Returns CacheStream<TValue> & { last: () => TValue } & RT