Optionalentries: readonly (readonly [string, V])[] | nullOptionaliterable: Iterable<readonly [string, V], any, any> | nullReadonly[toReadonlysizeStatic Readonly[species]Returns an iterable of entries in the map.
true if an element in the Map existed and has been removed, or false if the element does not exist.
Returns an iterable of key, value pairs for every entry in the map.
Returns a specified element from the Map object. If the value that is associated to the provided key is an object, then you will get a reference to that object and any change made to that object will effectively modify it inside the Map.
Returns the element associated with the specified key. If no element is associated with the specified key, undefined is returned.
boolean indicating whether an element with the specified key exists or not.
Returns an iterable of keys in the map
Adds a new element with a specified key and value to the Map. If an element with the same key already exists, the element will be updated.
Returns an iterable of values in the map
A
Map<string, V>whose keys are trimmed on every access, so a lookup by a raw (possibly untrimmed or nullish) key still hits a value stored under its trimmed form, and stray whitespace can't create distinct entries for what is really the same key.keys/values/size/iteration are inherited fromMapand operate on the (already trimmed) stored keys.