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fp-ts-graph

ImmutableMap overview

Added in v0.3.0

Table of contents

Combinators

modifyAt

Update a key/value pair in an immutable Map.

Signature

export declare const modifyAt: <K>(
  E: Encoder<string, K>
) => <A>(k: K, f: (a: A) => A) => (m: Map<string, A>) => Option<Map<string, A>>

Added in v0.3.0

upsertAt

Insert or replace a key/value pair in an immutable Map.

Signature

export declare const upsertAt: <K>(E: Encoder<string, K>) => <A>(k: K, a: A) => (m: Map<string, A>) => Map<string, A>

Added in v0.3.0

Utils

lookup

Lookup the value for a key in an immutable Map.

Signature

export declare const lookup: <K>(E: Encoder<string, K>) => (k: K) => <A>(m: Map<string, A>) => Option<A>

Added in v0.3.0