Skip to content
IsaacScript

Immutable

Type Aliases

Section titled “Type Aliases”

Immutable

Section titled “Immutable”

Immutable<T> = T extends ImmutablePrimitive ? T : T extends infer U[] ? ImmutableArray<U> : T extends Map<infer K, infer V> ? ImmutableMap<K, V> : T extends Set<infer M> ? ImmutableSet<M> : ImmutableObject<T>

Defined in: packages/isaacscript-common/src/types/Immutable.ts:8

Helper type to make the given array/map/set/object recursively read-only.

You can use this type to easily build safe data structures.

From: https://stackoverflow.com/questions/41879327/deepreadonly-object-typescript

Type Parameters

Section titled “Type Parameters”
T
Section titled “T”

T