Question

if (typeof(hoursoperation) != 'undefined' && hoursoperation != null)
    {
      console.log(myJson.acf['office_hours']);



    }

在我的Fetch API技术中；首先，我确保存在“ office_hours”；并且确实如此：以上console.log打印以下数据：

Array(7)
0:
closing_time: "1600"
day: "7"
starting_time: "0800"
__proto__: Object
1:
closing_time: "1600"
day: "1"
starting_time: "0600"
__proto__: Object
2:
closing_time: "1600"
day: "2"
starting_time: "0600"
__proto__: Object
3: {day: "3", starting_time: "0600", closing_time: "1600"}
4: {day: "4", starting_time: "0600", closing_time: "1600"}
5: {day: "5", starting_time: "0600", closing_time: "1600"}
6: {day: "6", starting_time: "0700", closing_time: "1700"}
length: 7
__proto__: Array(0)

如何获取用户的本地时间；然后遍历上面的内容进行比较？

我知道使用jQuery很容易；但是陷入这种困境的是普通的ES6 javaScript代码。

即这是我如何使用jQuery到达那里：（但仍在搜索ES6方法）

            var today, starttime, endtime;

            var optiondata = JSON.parse(data);

            var officehours = optiondata.acf.office_hours;

            today = new Date();

            var starthour = parseInt(parseInt(officehours[today.getDay()].starting_time)/100);
            var startmin = starthour*100 - parseInt(officehours[today.getDay()].starting_time);

            var endhour = parseInt(parseInt(officehours[today.getDay()].closing_time)/100);
            var endmin = endhour*100 - parseInt(officehours[today.getDay()].closing_time);

            starttime = new Date(today.getFullYear(),today.getMonth(),today.getDate(),starthour,startmin,0,0);

            endtime = new Date(today.getFullYear(),today.getMonth(),today.getDate(),endhour,endmin,0,0);

            // calculate offset for timezones (PST or PDT) to ensure that AlgaeCal is actually open (using Vancouver, B.C.)

            var tzurl = "https://maps.googleapis.com/maps/api/timezone/json?location=49.246670,-123.094729&timestamp=" + parseInt(today.getTime()/1000) + "&key=XXXXX";

            $.ajax({
                url: tzurl,
                dataType: "text",
                success:function(tzdata){
                    $("#hours-operation").hide();

                    var timezonedata = JSON.parse(tzdata);

                    // subtract offsets to get GMT of start and end times of office hours and convert to milliseconds:
                    var chkstarttime = starttime.getTime() - timezonedata.dstOffset*1000 - timezonedata.rawOffset*1000;
                    var chkendtime = endtime.getTime() - timezonedata.dstOffset*1000 - timezonedata.rawOffset*1000;

                    // get offset for current local time and convert to milliseconds
                    var tz = today.toString().split("GMT")[1].split(" (")[0];
                    var chktoday = today.getTime() - parseInt(tz)/100*60*60*1000;

                    // check if current time is truly during open office hours:
                    if(chktoday >= chkstarttime && chktoday <= chkendtime){
                        // show "speak to our bone health specialists message"
                        $("#hours-operation").show();
                    }
                }
            });

        }
    });

Answer 1

首先，获取与办公时间相关的时区中的当前时间。由于您的源数据使用的是HHMM格式，因此请同时获取该格式的时间：

// This gives the current local time in Vancouver, in HHMM format, such as 1703 or 0945
const now = new Date().toLocaleTimeString('en-CA', {
    timeZone: 'America/Vancouver', hour12: false, timeStyle: 'short'
    }).replace(':','');

现在，您可以简单地将值与源数据进行比较。之所以可行，是因为HHMM格式的时间字符串可按字典顺序排序。

const isActive = starting_time <= closing_time   // test the shift type (normal or inverted)
    ? (starting_time <= now && closing_time > now)   // normal comparison
    : (starting_time <= now || closing_time > now);  // inverted comparison

在上面的注释中，“普通”轮班类型是在同一天开始和结束轮班的类型，例如0900至1700。 “倒置”移位类型是一种跨越午夜的类型，例如1800至0200。

请注意，这仅在完全实现ECMAScript Internationalization API（包括时区支持）的环境中有效。

还请注意，它没有考虑到在夏令时回退过渡的模糊时间开始或结束的班次。（完全围绕DST转换的移位应该没问题。）

如果用户当前时区的时区与“营业时间”（ES6）对齐，则显示div

1 个答案: