Function mapWritableChannel

mapWritableChannel<T extends NotUndefined, R extends NotUndefined>(
channel: WritableChannel<R>,
fn: (value: T) => R,
): WritableChannel<T>
Applies function to values before they are written into the channel
Type Parameters
- T extends NotUndefined
- R extends NotUndefined
Parameters
- channel: WritableChannel<R>
- fn: (value: T) => R
Returns WritableChannel<T>
- Defined in src/mapping.ts:7