singletonMap<K extends Comparable, V> function
Implementation
IMap<K, V> singletonMap<K extends Comparable, V>(K k, V v) => emptyMap<K, V>().put(k, v);
IMap<K, V> singletonMap<K extends Comparable, V>(K k, V v) => emptyMap<K, V>().put(k, v);