Function until

adev/src/app/editor/terminal/terminal.component.spec.ts:56–69

(fn: () => T)

});

async function until<T>(fn: () => T): Promise<T> {
  const timeout = 1000;
  const start = performance.now();
  while (true) {
    const result = fn();
    if (result) {
      return result;
    }
    if (performance.now() - start > timeout) {
      throw new Error(`condition not satisfied within ${timeout}ms.`);
    }
    await new Promise((r) => setTimeout(r, 1));
  }
}