Function hasAnyValue

hasAnyValue<K, V>(
    map: ReadonlyMap<K, V>,
    value: V,
    comparer: IsEqual<V>,
): boolean
Returns true if any key contains value, based on the provided comparer function. Use hasKeyValue if you only want to find a value under a certain key.

Having a comparer function is useful to check by value rather than object reference.
Type Parameters
- K
- V
Parameters
- map: ReadonlyMap<K, V>
  Map to search
- value: V
  Value to find
- comparer: IsEqual<V>
  Function that determines matching. Should return true if a and b are considered equal.
Returns boolean
True if value is found
Example: Finds value where name is 'samantha', regardless of other properties
```
hasAnyValue(map, {name:`samantha`}, (a, b) => a.name === b.name);
```
Works by comparing value against all values contained in map for equality using the provided comparer.