moment.locale 增加额外的一天

Question

我尝试将 moment.locale 添加到我的代码中：

    if(time_to_exe == 6)
    {
        moment.locale('fr', {
    months : 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split('_')});
var orderDateTime = moment();
// Get Sunday (first day) of this week and add 3 days (to get to Wednesday) and set the time to 11:59am
var cutOffDate = moment().startOf('week').add(3,'days').set({'hour': 11, 'minute': 59, 'second': 59});
// Initialize delivery date from order date
var deliveryDate = orderDateTime.clone();
if (orderDateTime.isSameOrBefore(cutOffDate)) {
    deliveryDate = deliveryDate.add(1,'week').startOf('week').add(1,'day'); // Monday next week
} else {
    deliveryDate = deliveryDate.add(2,'week').startOf('week').add(1,'day'); // Monday the week after next
}
    
    if (deliveryDate) {
  time_to_exe = deliveryDate.format("D MMMM");
      
    } else {
      time_to_exe = time_to_exe + "d";
    }
    }

一切正常，文本月份以法语显示，但问题是moment.locale增加了一天

示例：在 moment.locale 之前，我的日期显示为 9 月 6 日（英文），但在添加 moment.locale 之后显示为 7 Septembre（法文）

为什么要增加一天？

Answer 1

自己解决的，去掉.add(1,'day')即可据我了解，那么在星期天开始的一周之前，需要添加 1 天才能得到星期一，但是更改语言环境周从星期一开始，所以不需要添加额外的一天

    if(time_to_exe == 6)
    {
var orderDateTime = moment();
// Get Sunday (first day) of this week and add 3 days (to get to Wednesday) and set the time to 11:59am
var cutOffDate = moment().startOf('week').add(2,'days').set({'hour': 11, 'minute': 59, 'second': 59});
// Initialize delivery date from order date
var deliveryDate = orderDateTime.clone();
if (orderDateTime.isSameOrBefore(cutOffDate)) {
    deliveryDate = deliveryDate.add(1,'week').startOf('week'); // Monday next week
} else {
    deliveryDate = deliveryDate.add(2,'week').startOf('week'); // Monday the week after next
}
    
    if (deliveryDate) {
  time_to_exe = deliveryDate.format("D. MMMM");
      
    } else {
      time_to_exe = time_to_exe + "d";
    }
    }

Answer 2

时间过时了，它只会给你的包增加很多额外的重量。 JavaScript自己有能力做更多更好的事情


const event = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));

const options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };

console.log(event.toLocaleDateString('de-DE', options));
// expected output: Donnerstag, 20. Dezember 2012

console.log(event.toLocaleDateString('ar-EG', options));
// expected output: الخميس، ٢٠ ديسمبر، ٢٠١٢

console.log(event.toLocaleDateString(undefined, options));
// expected output: Thursday, December 20, 2012 (varies according to default locale)

在此处了解更多信息 https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString

moment.locale 增加额外的一天

moment.locale adding extra day

javascript

momentjs