isImmutable

Returns a boolean indicating whether the provided value has not been marked as mutable.

See (@monstermann/remmi)

isImmutable(value); // true

startMutations(() => {
    isImmutable(value); // true
    markAsMutable(value);
    isImmutable(value); // false
    unmarkAsMutable(value);
    isImmutable(value); // true
});

isImmutable(value); // true