如何比较 javascript 上的时间？

Question

我正在尝试比较用户输入的星期几和用户选择的小时，但它不起作用。第一个问题是，dialogflow 只接受时间 AM 和 PM，而不是 24 小时格式（我试图使用时刻 JS，但也没有成功......），第二个问题是我的条件不起作用，即使我提出所有这些条件，机器人也会进行预约。对不起我的英语，有人可以帮助我吗？ :/

    // for Dialogflow fulfillment library docs, samples, and to report issues
'use strict';

const functions = require('firebase-functions');
const {google} = require('googleapis');
const {WebhookClient} = require('dialogflow-fulfillment');

process.env.DEBUG = 'dialogflow:debug'; // enables lib debugging statements

exports.dialogflowFirebaseFulfillment = functions.https.onRequest((request, response) => {
  const agent = new WebhookClient({ request, response });
  console.log('Dialogflow Request headers: ' + JSON.stringify(request.headers));
  console.log('Dialogflow Request body: ' + JSON.stringify(request.body));


});
// Enter your calendar ID below and service account JSON below
// Starts with {"type": "service_account",...

 // Set up Google Calendar Service account credentials
 const serviceAccountAuth = new google.auth.JWT({
   email: serviceAccount.client_email,
   key: serviceAccount.private_key,
   scopes: 'https://www.googleapis.com/auth/calendar'
 });

 const calendar = google.calendar('v3');
 process.env.DEBUG = 'dialogflow:*'; // enables lib debugging statements

 const timeZone = 'America/Buenos_Aires';
 const timeZoneOffset = '-03:00';

 exports.dialogflowFirebaseFulfillment = functions.https.onRequest((request, response) => {
   const agent = new WebhookClient({ request, response });
   console.log("Parameters", agent.parameters);
   const appointment_type = agent.parameters.especialidade;
   function makeAppointment (agent) {
     // Calculate appointment start and end datetimes (end = +1hr from start)
     //console.log("Parameters", agent.parameters.date);
     const dateTimeStart = new Date(Date.parse(agent.parameters.date.split('T')[0] + 'T' + agent.parameters.time.split('T')[1].split('-')[0] + timeZoneOffset));
     const dateTimeEnd = new Date(new Date(dateTimeStart).setHours(dateTimeStart.getHours() + 1));
     const appointmentTimeString = dateTimeStart.toLocaleString(
       'en-US',
       { month: 'long', day: 'numeric', hour: 'numeric', timeZone: timeZone }
     );

    return createCalendarEvent(dateTimeStart, dateTimeEnd, appointment_type).then(() => {
       agent.add(`Ok, ${appointmentTimeString} is fine!.`);
     }).catch(() => {
       agent.add(`I'm sorry, there are no slots available for ${appointmentTimeString}.`);
     });
   }

   let intentMap = new Map();
   intentMap.set('marcarconsultas', makeAppointment);
   agent.handleRequest(intentMap);
 });

 function createCalendarEvent (dateTimeStart, dateTimeEnd, appointment_type) {
   var time = dateTimeStart.getHours();
   var weekly = dateTimeStart.getDay();
   //adjust timezone
   return new Promise((resolve, reject) => {
     calendar.events.list({
       auth: serviceAccountAuth, // List events for time period
       calendarId: calendarId,
       timeMin: dateTimeStart.toISOString(),
       timeMax: dateTimeEnd.toISOString()
     }, (err, calendarResponse) => {
       // Check if there is a event already on the Calendar
       if (err || calendarResponse.data.items.length > 0) {
         reject(err || new Error('Requested time conflicts with another appointment'));
       } else if (err || time > 17) {
        reject(err || new Error('We are open until 17h'));
       } else if (err || time < 8) {
        reject(err || new Error('We open at 8h'));
       } else if (err || weekly == 0 && weekly == 6) {
        reject(err || new Error('We do not work saturday or sunday'));
       } else if (err || appointment_type == 'cardiologia' || (time < 8 && time > 12) && (weekly != 4)) {
        reject(err || new Error ('Choose an hour between 8h and 12h'));
       } else if (err || appointment_type == 'infectiologia' || (time < 10 && time > 14) && (weekly == 5)) {
        reject(err || new Error ('Choose an hour between 10h and 14h'));
       } else if (err || appointment_type == 'pré-natal' || ( time < 14 && time > 17) && (weekly != 3)) {
        reject(err || new Error ('Choose an hour between 14h and 17h'));
       } else if (err || appointment_type == 'angiologia' || (time < 8 && time > 12) && (weekly != 3)) {
        reject(err || new Error('Choose an hour between 8h and 12h'));
       } else if (err || appointment_type == 'otorrinolaringologia' || (time < 8 && time > 17) && (weekly != 2 && weekly != 4)) {
        reject(err || new Error('Choose an hour between 8h and 17h'));
       }
       else {
         // Create event for the requested time period
         calendar.events.insert({ auth: serviceAccountAuth,
           calendarId: calendarId,
           resource: {summary: appointment_type +' Appointment', description: appointment_type,
             start: {dateTime: dateTimeStart},
             end: {dateTime: dateTimeEnd}}
         }, (err, event) => {
           err ? reject(err) : resolve(event);
         }
         );
       }
     });
   });
 }

Answer 1

如果你想转换成 am pm 试试这个函数

getTime(timestamp) {
      var date = new Date(timestamp * 1000);
      var hour = date.getHours();
      var minute = date.getMinutes();
      var dayOrNight = false;

      if (hour > 12) {
        hour = hour - 12;
        dayOrNight = true;
      } else if (hour === 12) {
        dayOrNight = true;
      } else if (hour === 0) {
        hour = 12;
        dayOrNight = false;
      } else {
        dayOrNight = false;
      }
      if (minute < 10) {
        minute = `0${minute}`;
      }
      var AMPM = dayOrNight ? "PM" : "AM";
      return `${hour}:${minute} ${AMPM}`;
    }

你能告诉我们什么是用户输入以及你将其与哪些数据进行比较

Answer 2

我认为您可以在转换 toLocaleString 时使用 hour12: false 或 hour12: true 选项来搞乱时间，在 MozillaWebDocs.

中提到

const timeZone = 'America/Buenos_Aires';
const dateTimeStart = new Date();
var hour12 = dateTimeStart.toLocaleString(
       'en-US',
       { month: 'long', day: 'numeric', hour: 'numeric', timeZone: timeZone, hour24: true }
     );
var hour24 = dateTimeStart.toLocaleString(
       'en-US',
       { month: 'long', day: 'numeric', hour: 'numeric', timeZone: timeZone, hour12: false }
     );

console.log(hour24)
console.log(hour12)

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