export class AsyncCallbackSet { private callbacks: (() => Promise)[] = [] public add(callback: () => Promise) { this.callbacks.push(callback) } public async runAll(): Promise { if (!this.callbacks.length) { return } const callbacks = this.callbacks this.callbacks = [] await Promise.allSettled( callbacks.map( // NOTE: wrapped in an async function to protect against synchronous exceptions async (f) => f() ) ) } }