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我只是想以下面的格式获取日期和时间。在 JS 中看起来非常困难和复杂。

2019-06-27 01:06:34.947

英国时间、日期、小时分钟和秒是最重要的，毫秒不是必需的。

每当我尝试时，我都会得到 UTC 时间，我也不需要显示 PM/AM 等。

var today = new Date().toLocaleDateString(undefined, {
  day: '2-digit',
  month: '2-digit',
  year: 'numeric'
  //hour: '2-digit',
  //minute: '2-digit',
  //second: '2-digit' 
})
console.log('today', today)


var time = new Date().toLocaleTimeString(undefined, {
  hour: '2-digit',
  minute: '2-digit',
  second: '2-digit'
})
console.log('time', time)

//var date = new Date();
//var timestamp = date.getTime();

var mytime = today + " " + time;
console.log('mytime', mytime)

//var tt = new Date().toLocaleString().replace(",","").replace(/:.. /," ");

var currentdate = new Date();
var datetime = currentdate.getDate() + "/" +
  (currentdate.getMonth() + 1) + "/" +
  currentdate.getFullYear() +
  currentdate.getHours() + ":" +
  currentdate.getMinutes() + ":" +
  currentdate.getSeconds();
console.log('datetime', datetime)

X = new Date().toLocaleDateString();
Y = new Date().toLocaleTimeString('en-GB', {
  hour: "numeric",
  minute: "numeric"
});
mynew = X + " " + Y;
console.log('mynew', mynew)

我希望看到 2019-06-27 01:06:34.947 或 27-06-2019 01:06:34.947

4

1 回答 1

2

我想说将本地Date实例格式化为YYYY-mm-DD HH:MM:SS的最佳选择是自己构建字符串

const today = new Date()
const formatted = 
    `${
      today.getFullYear()
    }-${
      String(today.getMonth()+1).padStart(2, '0')
    }-${
      String(today.getDay()).padStart(2, '0')
    } ${
      String(today.getHours()).padStart(2, '0')
    }:${
      String(today.getMinutes()).padStart(2, '0')
    }:${
      String(today.getSeconds()).padStart(2, '0')
    }`

// this just displays it
document.querySelector('pre').textContent = formatted
<pre></pre>

像Moment.js这样的库让这类事情变得更容易。

moment().format('YYYY-MM-DD HH:mm:ss')

见https://momentjs.com/docs/#/displaying/

于 2019-06-27T00:25:48.967 回答