TupleKeyedMap<K extends ReadonlyArray, 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 ReadonlyArray |
||
[iterator](): IterableIterator<[K, V]> | ||
clear(): void | ||
get(key: K): undefined | V | ||
has(key: K): boolean | ||
set(key: K, value: V): this |
Properties
Name | Type | Description | |
---|---|---|---|
size Accessor ReadOnly | number | ||
[toStringTag] Accessor ReadOnly | string |
Defined in
Last Updated: 06 October, 2024
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