js获取当前年月日-YYYYmmDD格式的实现代码

var nowDate = new Date();

var year = nowDate.getFullYear();

var month = nowDate.getMonth() + 1 < 10 ? "0" + (nowDate.getMonth() + 1):nowDate.getMonth() + 1;

var day = nowDate.getDate() < 10 ? "0" + nowDate.getDate() : nowDate.getDate();

var dateStr = year + "-" + month + "-" + day;