React之componentWillUnmount

React 之componentWillUnmount

unmount v. 卸载，取消安装；
will 不用解释了吧

• 清除定时器

componentWillUnmount(){
  clearTimeout(this.timer)
}

• 解绑dom事件

componentWillUnmount(){
  window.onScroll = null
}

• 清除网络工作

componentWillUnmount(){
  this.setState = (state,callback) => {
    return
  }
}

标签：unmount,componentWillUnmount,清除,React,null,setState
来源： https://blog.csdn.net/into_Q/article/details/114460385