modify

modify<S, A>(opt): (f) => (s) => S

Defined in: Core/Optional.ts:123

Applies a function to the focused value if it is present; returns the structure unchanged if the focus is absent.

Type Parameters

S

S

A

A

Parameters

opt

Optional<S, A>

Returns

(f): (s) => S

Parameters

f

(a) => A

Returns

(s): S

Parameters

s

S

Returns

S

Example

pipe(profile, Optional.modify(bioOpt)(s => s.toUpperCase()));