这是如何取消react活动的订阅?

我不确定我这样做是否正确?

async componentDidMount() {
  const claimNumber = 'T1339838'
  const {
    runtime
  } = this.context
  const data = await runtime.select('comments-get', {
    claimNumber: claimNumber
  })
  this.setState({
    commentsData: data
  })

  const commentsUpdated = runtime.fb.ref('/comments')
  commentsUpdated.on('value', childSnapshot => {
    this.updateComments(childSnapshot.val())
  })
}

componentWillUnmount() {
  // TODO: Remove on listener
  window.removeEventListener('resize', this.commentsUpdated)
}