js将1,2,3转换成周一、周二、周三（对象日期转换成字符串）

当后台返回的数据是数组格式的["1","3","5"],但是前台需要展示成周一、周三、周五的时候，可以使用下面的方法

convertData(){const data = ["1","3","5"];let arrWeek = ["周日","周一","周二","周三","周四","周五","周六"]		let tabWeekArr = []let tabWeek = ''for (var j = 0; j < thatData.length; j++) {//遍历所有的数据，截取到相应的下标let resArr = thatData[j].split(",").sort()for(var i=0;i<resArr.length;i++){// 按照下标取值let thatW = arrWeek[resArr[i]]								tabWeekArr.push(thatW)if(i==resArr.length-1){	//遍历到最后的时候tabWeek = tabWeekArr.join(",")//将上一个的数据清空，不然不正确tabWeekArr = []	// 这个在vue上面就可以正常展示周一、周三了		thatData[j].tabWeek = tabWeek}}}
}