使用 Moment().max 和 min 查找最大和最小日期不起作用

Question

我有一个日期数组，想在数组中找到最大和最小日期。

这是我的代码：

let date_list = [
"2021-03-19T00:00:00Z", 
"2021-03-20T00:00:00Z", 
"2021-04-12T00:00:00Z", 
"2021-04-13T00:00:00Z",
"2021-04-11T00:00:00Z", 
"2021-04-12T00:00:00Z", 
"2021-03-18T00:00:00Z"
];

let uniq_dates = [...new Set(date_list.map(d => moment.utc(d).format()  ))];
console.log(uniq_dates);

console.log(moment().max(date_list));

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js" integrity="sha512-qTXRIMyZIFb8iQcfjXWCO8+M5Tbc38Qi5WzdPOYZHIlZpzBHG3L3by84BBBOiRGiEb7KKtAOAs5qYdUiZiQNNQ==" crossorigin="anonymous"></script>

我有时会收到一条错误消息 NaN 或者我收到 Deprecation warning: moment().max is deprecated, use moment.min instead.

如何获取日期数组中的最大值和最小值？

Answer 1

您可以将 Array#reduce 与 moment.max 结合使用。

let date_list = [
"2021-03-19T00:00:00Z", 
"2021-03-20T00:00:00Z", 
"2021-04-12T00:00:00Z", 
"2021-04-13T00:00:00Z",
"2021-04-11T00:00:00Z", 
"2021-04-12T00:00:00Z", 
"2021-03-18T00:00:00Z"
];

let uniq_dates = [...new Set(date_list.map(d => moment.utc(d).format()  ))];
console.log(uniq_dates);

console.log(uniq_dates.reduce((acc,curr)=>acc.max(curr), moment()));

.as-console-wrapper{max-height:100%!important;top:0}

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js" integrity="sha512-qTXRIMyZIFb8iQcfjXWCO8+M5Tbc38Qi5WzdPOYZHIlZpzBHG3L3by84BBBOiRGiEb7KKtAOAs5qYdUiZiQNNQ==" crossorigin="anonymous"></script>

Answer 2

您可以使用此代码。

let date_list = [
"2021-03-19T00:00:00Z", 
"2021-03-20T00:00:00Z", 
"2021-04-12T00:00:00Z", 
"2021-04-13T00:00:00Z",
"2021-04-11T00:00:00Z", 
"2021-04-12T00:00:00Z", 
"2021-03-18T00:00:00Z"
];

let moments = date_list.map(d => moment(d)),
maxDate = moment.max(moments)

console.log(maxDate);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js" integrity="sha512-qTXRIMyZIFb8iQcfjXWCO8+M5Tbc38Qi5WzdPOYZHIlZpzBHG3L3by84BBBOiRGiEb7KKtAOAs5qYdUiZiQNNQ==" crossorigin="anonymous"></script>

使用 Moment().max 和 min 查找最大和最小日期不起作用

Finding max and min dates using Moment().max and min not working

javascript

arrays

jquery

momentjs

ecmascript-6