momentjs

问题 I have one date but i want to get previous date from that.How we can do using javascript or momentjs? Demo:https://stackblitz.com/edit/js-ykswiz?file=index.js date format dd-mm-yyyy. Example: var date1=new Date("08-06-2020"); console.log("Prev Date="+date1.getDate() - 1);// Prev Date=07-06-2020 var date2=new Date("01-06-2020"); console.log("Prev Date="+date2.getDate() - 1);// Prev Date=31-05-2020 var date3=new Date("01-01-2021"); console.log("Prev Date="+date3.getDate() - 1);// Prev Date=31

问题 I did read different StackOverflow posts and they suggested to use .utc from moment but it doesn't work Note: I am on PST zone const start = '2018-06-10T21:00:00-04:00'; const end = '2018-06-10T23:00:00-04:00'; const noconversion = moment.utc(start).format('MM/DD/YYYY'); const converted = moment(end).format('MM/DD/YYYY'); Current output: noconversion - 2018-06-11 converted - 2018-06-11 Output expected: 06/10/2018 just fetch date from date provided CODEPEN Link 回答1: Have you tried parseZone?

问题 My configuration is Lisbon time zone. When I do new Date() I get my current local date/time which is Fri Apr 28 2017 01:10:55 GMT+0100 (GMT Daylight Time) When I get the ISO string with toISOString() it will apply the time zone and I will get: 2017-04-28T00:10:55.964Z The problem is that some minutes ago the date time was like this (yesterday): 2017-04-27T23:45:05.654Z I tried moment.js (new to this) and I did something like this document.write(moment('2017-04-28').format()) But I get this

问题 Hello I am new to javascript. I have chart.js with the data from API look like this : .....//datepicker code...... $.ajax({ method: "GET", url: endpoint, data: { startDate: startDate, endDate: endDate }, success: function(data){ //get data by fields var accelero_x = [], timestamp = []; for (var i=0; i<data.length; i++){ accelero_x.push(data[i].accelero_x); timestamp.push(data[i].timestamp); } //plot the chart var ctx = document.getElementById("accelero_xChart").getContext('2d'); var accelero

问题 I fetching data form database and I want to send response date wise. I want little bit of help in group By my data with date wise. I have Object like as below var IHAVE = [{ "foodId": "59031fdcd78c55b7ffda17fc", "qty": 1, "dateTime": "2017-07-26T12:03:06.000Z", "_id": "591c3bfcca93e86c3450a537" }, { "foodId": "59031fdcd78c55b7ffda17fc", "qty": 1, "dateTime": "2017-05-18T04:21:13.000Z", "_id": "591d213b6878badb0621b840" }, { "foodId": "59031fdcd78c55b7ffda17fc", "qty": 1, "dateTime": "2017-07

问题 I would like to format a summed up total working hours e.g. 49.75 to this: 49:45 . When I use duration like this: const dur = moment.duration(49.75, 'hours').asMilliseconds(); moment.utc(dur).format("HH:mm:ss") // 01:45:00 I'll receive 01:45:00 instead of 49:45:00 Is there a way to format (instead of HH ) duration without dropping the days? 回答1: I recommend you this answer. You can add a format for the duration, and it works for greater than 24 Hour. function(input) { input = input || ''; var

问题 This question already has answers here : Get the time difference between two datetimes (14 answers) Closed 4 years ago . I want to display remaining hours, minutes and seconds to a specific preset time (01:00 PM) from the current time with help of moment js. I am using the following code, var n = new Date(); var end = new Date(n.getFullYear(), n.getMonth(), n.getDate(), 13, 0, 0, 0); var a = moment(end); var b = moment(n); var eta = a.subtract(b).toDate().toLocaleTimeString(); It works fine

问题 I'm trying to get the weeknumer of a date, but I want it to work with a variable first day of the week. A user is able to set the first day of the week. I couldn't find a javascript solution, so I tried moment. Unfortunately, I couldn't find a way to set the first day of the week. E.g. Sunday for US, Monday for the EU, but it would be nice if it could be any other day as well. 回答1: Moment supports i18n, you can change locale globally or change locales locally and update first day of the week

问题 I have a daterange picker based on http://www.daterangepicker.com 's daterange picker and I want to set the start date to empty. This will work for what I want to do. I'm using an text input field to get the dates </span><input type="text" class="form-control" id="reservation" /> On the site there is an example of setting "Input Initially Empty" but I couldn't get it to work. Basically I don't know where to set it as it seems. My daterange picker is inside a partial view and it called by

问题 I'm requesting data from Facebook Insights API with granularity set to a day, let's take likes as an example. My request goes to: PAGEID/insights/page_fan_adds_unique/day Response looks like this: { "data": [ { "id": "PAGEID/insights/page_fan_adds_unique/day", "name": "page_fan_adds_unique", "period": "day", "values": [ { "value": 3, "end_time": "2014-08-29T07:00:00+0000" }, { "value": 4, "end_time": "2014-08-30T07:00:00+0000" }, { "value": 1, "end_time": "2014-08-31T07:00:00+0000" } ],