js获取日期对应周几

在这里插入图片描述

function fun_week(datestr){
    
    
    var weekArray = new Array("周日", "周一", "周二", "周三", "周四", "周五", "周六");
    var week = weekArray[new Date(datestr).getDay()];
    console.log(week);
    return week;
}
 fun_week('1997-5-21')  //  周三

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转载自blog.csdn.net/lannieZ/article/details/111476185