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lazy

Callable

  • lazy<T>(getValue): () => T

  • Returns the result of getValue, that will be called once. Useful for expensive computation

    const expensiveRead = lazy(() => fs.readDirSync('my/dir'));
    // fs.readDirSync not called
    console.log(
      expensiveRead() // <- fs.readDirSync called, return value is put in cache
    );
    console.log(
      expensiveRead() // <- fs.readDirSync not called, return value from cache
    );