Class MapTransform<T, R>

Transform stream that maps each record through a transform function Supports both synchronous and asynchronous transform functions

Type Parameters

T = any
R = any

Hierarchy

Transform
- MapTransform

Index

Constructors

Methods

Constructors

constructor

new MapTransform<T = any, R = any>(
options: MapTransformOptions<T, R>,
): MapTransform<T, R>
Type Parameters
- T = any
- R = any
Parameters
- options: MapTransformOptions<T, R>
Returns MapTransform<T, R>
Overrides Transform.constructor
- Defined in streams/transforms.ts:29

Methods

_transform

_transform(
    record: T,
    encoding: string,
    callback: (error?: Error | null, data?: R) => void,
): Promise<void>
Transform a chunk (record)
Parameters
- record: T
- encoding: string
- callback: (error?: Error | null, data?: R) => void
Returns Promise<void>
Overrides Transform._transform
- Defined in streams/transforms.ts:40