TupleKeyedMap<K extends undefined, V> Class
A map similar to the standard JavaScript Map collection except that the keys must be a tuple (javascript array), and two keys are considered equal if their elements in order are strict-equal, and the tuples have the same amount of elements
This means you can use array literals to key data in Maps that would otherwise be reference-compared if using JavaScript's built in Map
Note that JavaScript's Map type, unlike this one that uses strict equality, uses instead SameValueZero equality comparison
see https://262.ecma-international.org/6.0/#sec-samevaluezero
const map = new TupleKeyedMap([[1,"y"], "value"]);
const value = map.get([1, "y"]); // a normal map would identify these keys as different because they are independent objects
It is implemented by each index of the tuple key being used as a singular key into a submap
note this only implements a subset of the Map interface
Methods
| Name | Description | |
|---|---|---|
| constructor<K extends undefined, V>(entries?: | ): TupleKeyedMap<K, V> | ||
| [iterator](): IterableIterator<[K, V]> | ||
| clear(): void | ||
| get(key: K): undefined | V | ||
| has(key: K): boolean | ||
| set(key: K, value: V): TupleKeyedMap<K, V> |
Properties
| Name | Type | Description | |
|---|---|---|---|
| size Accessor ReadOnly | number | ||
| [toStringTag] Accessor ReadOnly | string |
Defined in
Last Updated: 30 November, 2023