js destroy 卡死

const weakMap = new WeakMap();

class MyClass {
  constructor() {
    weakMap.set(this, { data: 'some data' });
  }

  destroy() {
    weakMap.delete(this);
  }
}

async function destroy() {
  for (let i = 0; i < items.length; i++) {
    await processItemAsync(items[i]);
  }
}

class MyClass {
  constructor() {
    this.timer = setInterval(() => {
      // do something
    }, 1000);
  }

  destroy() {
    clearInterval(this.timer);
  }
}

class FileHandler {
  constructor(filePath) {
    this.file = openFile(filePath);
  }

  destroy() {
    if (this.file) {
      closeFile(this.file);
      this.file = null;
    }
  }
}

export default {
  data() {
    return {
      timer: null
    };
  },
  mounted() {
    this.timer = setInterval(() => {
      console.log('Tick');
    }, 1000);
  },
  beforeUnmount() {
    clearInterval(this.timer);
  }
};