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fold()

const fold: <E, B, A>(onLeft, onRight) => (ma) => () => Promise<B> = match

Alias for match.

Pattern matches on a TaskEither.

Type Parameters​

E: E​

The error type.

B: B​

The return type.

A: A​

The success type.

Parameters​

onLeft: (e) => B​

Handler for Left case.

onRight: (a) => B​

Handler for Right case.

Returns​

A function that matches the TaskEither.

Returns: Promise<B>​

Since​

2.0.0