javascript - 获取按天分组的时间

Question

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Answer 1

这是一个试图将相同时间分组到一个日组的提案。

它使用一个对象 grouped 来表示日期和时间，然后使用数组 combined 作为结果集。

我跳过了更改 12 小时时钟显示的部分。

var daysMapping = { 1: "MON", 2: "TUE", 3: "WED", 4: "THU", 5: "FRI", 6: "SAT", 7: "SUN" },
    days = ["MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN"],
    timingsArr = [{ StartTime: "09:00:00", EndTime: "13:00:00", Days: "[2,3,4,5]" }, { StartTime: "16:00:00", EndTime: "19:00:00", Days: "[2,3,4,5,6]" }, { StartTime: "09:00:00", EndTime: "14:00:00", Days: "[6,7]" }],
    grouped = {},
    combined = [];

timingsArr.forEach(function (a) {
    var days = JSON.parse(a.Days).forEach(function (d) {
        grouped[daysMapping[d]] = grouped[daysMapping[d]] || [];
        grouped[daysMapping[d]].push(a.StartTime + ' ' + a.EndTime);
    });
});
days.forEach(function (day, i) {
    if (!i || JSON.stringify(this.last.data) !== JSON.stringify(grouped[day])) {
        this.last = { days: [day], data: grouped[day] };
        combined.push(this.last);
        return;
    }
    this.last.days[1] =day;
}, {});

combined.forEach(function (a) {
    var p;
    if (a.data) {
        a.data.sort();
        p = document.createElement('p');
        p.innerHTML = '<strong>' + a.days.join(' - ') + '</strong><br>' + a.data.join('<br>');
        document.body.appendChild(p);
    }
});