js中yyyymmdd hh:mm:ss字符转换为Date

var dateString="20190102 10:30:35";
var pattern = /(\d{4})(\d{2})(\d{2})/;
var formatedDate = dateString.replace(pattern, '$1/$2/$3');
var date = new Date(formatedDate);

输出结果：

yyyyyymmdd hhmmss字符转换为Date

var dateString1 = "20190328112125";
var pattern = /(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/;
var formatedDate1 = dateString1.replace(pattern, '$1/$2/$3 $4:$5:$6');
var ddate1 = new Date(formatedDate1);