Function firstEntryByValue

firstEntryByValue<K, V>(
    map: Data.Maps.IWithEntries<K, Iterable<V, any, any>>,
    value: V,
    isEqual?: IsEqual<V>,
): undefined | readonly [K, Iterable<V, any, any>]
Finds first entry by iterable value. Expects a map with an iterable as values.
```
const map = new Map();
map.set('hello', ['a', 'b', 'c']);
map.set('there', ['d', 'e', 'f']);

const entry = firstEntryByValue(map, 'e');
// Entry is: ['there', ['d', 'e', 'f']]
```
An alternative is firstEntry to search by predicate function.
Type Parameters
- K
- V
Parameters
- map: Data.Maps.IWithEntries<K, Iterable<V, any, any>>
  Map to search
- value: V
  Value to seek
- isEqual: IsEqual<V> = isEqualDefault
  Filter function which checks equality. Uses JS comparer by default.
Returns undefined | readonly [K, Iterable<V, any, any>]
Entry, or undefined if value not found.