Function isfrozen

isfrozen<T>(t): t is T extends readonly V[]
    ? readonly V[]
    : T extends ReadonlyMap<K, V>
        ? ReadonlyMap<K, V>
        : T extends ReadonlySet<V>
            ? Readonly<ReadonlySet<V>>
            : Readonly<T>
Returns whether or not t is frozen
Type Parameters
- T extends object
Parameters
- t: T
Returns t is T extends readonly V[]
    ? readonly V[]
    : T extends ReadonlyMap<K, V>
        ? ReadonlyMap<K, V>
        : T extends ReadonlySet<V>
            ? Readonly<ReadonlySet<V>>
            : Readonly<T>