js定时器

componentDidMount(){
const {data, length} = this.state
let i = 1
//异步动态加入数据
let interval = setInterval(() => {
if(i<= length){
data.push({
key: String(i),
order: String(i),
name: ‘张三’,
age: 13,
hobby: ‘乒乓’,
home: ‘山东’,
})
this.setState({data: data})
console.log(i)
i++
}else{
//数据加载全部完成，取消Modal框并清除interval
this.setState({showProcess: false})
clear()
}
}, 10);

let clear=()=>{
  clearInterval(interval)
}

}