从HTML时间输入获取AM/PM [英] Get AM/PM from HTML time input

问题描述

首先，我知道IE10或更早版本和Firefox不支持<input type="time">，但这只是出于测试目的，我将在另一时间进行跨浏览器的适当更改.

First, I know that <input type="time"> is not supported by IE10 or earlier, and Firefox, but this is only for testing purposes and I will make appropriate, cross-browser changes at another time.

目前，我有一个HTML时间输入字段.我试图从中提取值，包括小时，分钟和AM/PM.我可以显示小时和分钟，但不包括AM/PM指示.

For the time being, I have a HTML time input field. I am trying to extract the values from it including the hour, minutes and AM/PM. I can display the hour and minutes, but an AM/PM indication is not including.

我的输入如下:

<input type="time" name="end-time" id="end-time">

我通过alert()打印输出值，如下所示:

I print out via alert() the input value as follows:

alert(document.getElementById('end-time').value);

输入后，我会收到一条警报，例如:

Upon input I receive an alert such as:

01:34.

请注意，alert()中未包含AM/PM.

Notice that an AM/PM is not included in the alert().

如何从通过Javascript输入的HTML时间中获取AM/PM值?

How can I get the AM/PM value from a HTML time input via Javascript?

推荐答案

据我所知，我们无法直接从子午线格式"AM/PM"的输入中获取值.相反，我们可以编写自己的逻辑，以AM/PM格式转换值并存储/显示.

As far as i know, We cannot get the value from the input directly in the meridian format of 'AM/PM'. Instead, we can write our own logic of converting the value in the AM/PM format and store/display it.

下面是它的实现.

var inputEle = document.getElementById('timeInput');


function onTimeChange() {
  var timeSplit = inputEle.value.split(':'),
    hours,
    minutes,
    meridian;
  hours = timeSplit[0];
  minutes = timeSplit[1];
  if (hours > 12) {
    meridian = 'PM';
    hours -= 12;
  } else if (hours < 12) {
    meridian = 'AM';
    if (hours == 0) {
      hours = 12;
    }
  } else {
    meridian = 'PM';
  }
  alert(hours + ':' + minutes + ' ' + meridian);
}

<input type="time" onchange="onTimeChange()" id="timeInput" />

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