Function reusable

reusable(options?: ReusableOptions): MethodDecorator

Decorator to reuse promises while they're pending, and optionally cache the result forever

Parameters

options: ReusableOptions = {}

Returns MethodDecorator

Example

class MyClass {
  // Reuse promise while pending (default behavior)
  @reusable()
  async fetchData() {
    return await fetch('...');
  }

  // Cache result forever (singleton pattern)
  @reusable({forever: true})
  async init() {
    // This will only run once
    return await this.setup();
  }
}