js怎么把字符串'yyyymmddhhmmss' 转成'yyyy-mm-dd hh:mm:ss'

Question

'yyyymmddhhmmss' 转成'yyyy-mm-dd hh:mm:ss'

Answer 1

这是正则的方法

var dateStr = '20180418230102';
var reg = /(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/;
dateStr = dateStr.replace(reg, '$1-$2-$3 $4:$5:$6');
"2018-04-18 23:01:02"