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    Class default<V, O>

    const cache1 = new Cache();
    cache1.add('foo', 'value');

    const cache2 = new Cache();
    cache2.match('foo'); // value

    const cache3 = new Cache({ namespace: 'foo' });
    cache3.match('foo'); // undefined

    let COUNTER = 0;
    const createPromise = () => new Promise((res) => {
      COUNTER++;
      setTimeout(() => res('Ok'), 300);
    });

    const cache = new Cache();
    for (let i = 0; i < 10; i++) {
      cache.add('foo', createPromise).then((data) => {
        console.log(data); // 'Ok'
      });
    }
    console.log(COUNTER); // 1

    Type Parameters

    • V = any
    • O extends Record<string, unknown> = Record<string, unknown>
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    add addFull all clean delete match matchAll

    Constructors

    • Type Parameters

      • V = any
      • O extends Record<string, unknown> = Record<string, unknown>

      Parameters

      • options: CacheOptions = {}

      Returns default<V, O>

    Methods

    • Parameters

      • key: string
      • valueToSet: V | (() => V)
      • OptionalpropsOrOptions: CacheMatchProps<O> | AddOptions<O>
      • OptionalonlyFull: boolean
      • OptionalexpirationTime: number

      Returns V

    • Caching only a non-empty value.

      Useful for get or create strategy

      Parameters

      • key: string
      • valueToSet: V | (() => V)
      • OptionalpropsOrOptions: CacheMatchProps<O> | AddOptions<O>
      • OptionalexpirationTime: number

      Returns V

      const cache = new Cache();
      const getItemFunc = () => fetch(url).then((data) => {
       return data.json(); // undefined
      });
      const item = await cache.addFull('foo', getItemFunc);
      if (!item) {
        await createItem(); // 'New item'
      }

      // somewhere else in the code
      const item = await cache.addFull('foo', getItemFunc).then((resp) => {
        console.log(resp); // 'New item'
      });

    • Parameters

      • item: CacheItem

      Returns void

    • Parameters

      • key: string
      • Optionalprops: CacheMatchProps<O>

      Returns void

    • Parameters

      • key: string
      • Optionalprops: CacheMatchProps<O>

      Returns undefined | V

    • Parameters

      • Optionalkey: string
      • Optionalprops: CacheMatchProps<O>

      Returns V[]

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