Function firstEntryByPredicate

firstEntryByPredicate<K, V>(
map: Data.Maps.IWithEntries<K, V>,
predicate: (value: V, key: K) => boolean,
): undefined | readonly [K, V]
Finds first entry by iterable value. Expects a map with an iterable as values.
```
const map = new Map();
map.set('hello', 'a');
map.set('there', 'b');

const entry = firstEntryByPredicate(map, (value, key) => {
 return (value === 'b');
});
// Entry is: ['there', 'b']
```
An alternative is firstEntryByValue to search by value.
Type Parameters
- K
- V
Parameters
- map: Data.Maps.IWithEntries<K, V>
  Map to search
- predicate: (value: V, key: K) => boolean
  Filter function returns true when there is a match of value
Returns undefined | readonly [K, V]
Entry, or undefined if filter function never returns true