js日期字符串格式转换为年月日时分秒格式

let dateStr = '0903120659';let date = dateStr.replace(/(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/g,'$1-$2-$3 $4:$5:$6');console.log(date); // -09-03 12:06:59