代码
function getWeeks() {
// 当年的年份
let year = new Date().getFullYear();
let data = []
let d = new Date(year, 0, 1);
while (d.getDay() !== 1) {
// 以第一个星期一为开始日期
d.setDate(d.getDate() + 1);
}
let to = new Date(year, 11, 31);
while (to.getDay() !== 0) {
// 以星期日为结束日期
to.setDate(to.getDate() + 1);
}
let i = 1;
for (let from = d; from < to;) {
// 可按照要求重构下面代码
// 重构时注意“浅拷贝”问题 拼接方式虽然较为搓
// 但可以避“浅拷贝”导致的数据出错的问题
// 可以自己实现“深拷贝”方法或者使用三方实现
let str = '';
str = str + (i < 10 ? '0' + i : i) + "(周)" + year + "-" + ((from.getMonth() + 1) <= 9 ? ('0' + (from.getMonth() + 1)) : (from.getMonth() + 1)) + "-" + (from.getDate() <= 9 ? ('0' + from.getDate()) : from.getDate()) + " 至 ";
from.setDate(from.getDate() + 6);
if (from < to) {
str = str + year + "-" + ((from.getMonth() + 1) <= 9 ? ('0' + (from.getMonth() + 1)) : (from.getMonth() + 1)) + "-" + (from.getDate() <= 9 ? ('0' + from.getDate()) : from.getDate());
from.setDate(from.getDate() + 1);
} else {
str = str + year + "-" + ((to.getMonth() + 1) <= 9 ? ('0' + (to.getMonth() + 1)) : (to.getMonth() + 1)) + "-" + (to.getDate() <= 9 ? ('0' + to.getDate()) : to.getDate());
}
let obj = {
sun: i,
week: year + "-" + str.split("(周)")[0],
weekName: year + "-" + str.split("(周)")[0] + "(周)",
startDate: str.split("(周)")[1].split(" 至 ")[0],
entData: str.split("(周)")[1].split(" 至 ")[1]
}
data.push(obj)
i++;
}
return data;
}
结果
