···
let timeStr = ‘20200220210600’;
let timeData = staTime.replace(/(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/g, ‘$1-$2-$3 $4:$5:$6’);
console.log(timeData ); // 2020-02-20 21:06:00
···
···
let timeStr = ‘20200220210600’;
let timeData = staTime.replace(/(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/g, ‘$1-$2-$3 $4:$5:$6’);
console.log(timeData ); // 2020-02-20 21:06:00
···