Javascript 如何使用 Moment.JS 检查当前时间是否在 2 倍之间
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How to use Moment.JS to check whether the current time is between 2 times
提问by ????
Say the current time is 09:34:00(hh:mm:ss), and I have two other times in two variables:
假设当前时间是09:34:00( hh:mm:ss)，我在两个变量中还有另外两个时间：
var beforeTime = '08:34:00',
afterTime = '10:34:00';
How do I use Moment.JS to check whether the current time is between beforeTimeand afterTime?
如何使用 Moment.JS 检查当前时间是否在beforeTime和之间afterTime？
I've seen isBetween(), and I've tried to use it like:
我见过isBetween()，我试过像这样使用它：
moment().format('hh:mm:ss').isBetween('08:27:00', '10:27:00')
but that doesn't work because as soon as I format the first (current time) moment into a string, it's no longer a moment object. I've also tried using:
但这不起作用，因为一旦我将第一个（当前时间）时刻格式化为字符串，它就不再是一个时刻对象。我也试过使用：
moment('10:34:00', 'hh:mm:ss').isAfter(moment().format('hh:mm:ss')) && moment('08:34:00', 'hh:mm:ss').isBefore(moment().format('hh:mm:ss'))
but I get false, because again when I format the current time, it's no longer a moment.
但我明白了false，因为当我再次格式化当前时间时，它不再是片刻。
How do I get this to work?
我如何让这个工作？
回答by Linus Borg
- You can pass moment instances to
isBetween() - leave out the
format()calls, what you want is to pass parse formats like int the first moment() of your second attempt.
- 您可以将时刻实例传递给
isBetween() - 省略
format()调用，您想要的是在第二次尝试的第一时刻（）传递解析格式，如 int 。
That's all:
就这样：
var format = 'hh:mm:ss'
// var time = moment() gives you current time. no format required.
var time = moment('09:34:00',format),
beforeTime = moment('08:34:00', format),
afterTime = moment('10:34:00', format);
if (time.isBetween(beforeTime, afterTime)) {
console.log('is between')
} else {
console.log('is not between')
}
// prints 'is between'
回答by Woppi
I had to use isBetweenand isSamein my case to cover the beforeand aftertime I used in the isBetween condition.
我不得不使用isBetween和isSame在我的情况下，以覆盖before和after我在isBetween条件下使用的时间。
function getTimeCategory(time) {
let timeCategory = '';
const timeFormat = 'HH:mm:ss';
if (
time.isBetween(moment('00:00:00', timeFormat), moment('04:59:59', timeFormat)) ||
time.isSame(moment('00:00:00', timeFormat)) ||
time.isSame(moment('04:59:59', timeFormat))
) {
timeCategory = 'DAWN';
} else if (
time.isBetween(moment('05:00:00', timeFormat), moment('11:59:59', timeFormat)) ||
time.isSame(moment('05:00:00', timeFormat)) ||
time.isSame(moment('11:59:59', timeFormat))
) {
timeCategory = 'MORNING';
} else if (
time.isBetween(moment('12:00:00', timeFormat), moment('16:59:59', timeFormat)) ||
time.isSame(moment('12:00:00', timeFormat)) ||
time.isSame(moment('16:59:59', timeFormat))
) {
timeCategory = 'NOON';
} else if (
time.isBetween(moment('17:00:00', timeFormat), moment('23:59:59', timeFormat)) ||
time.isSame(moment('17:00:00', timeFormat)) ||
time.isSame(moment('23:59:59', timeFormat))
) {
timeCategory = 'NIGHT';
}
return timeCategory;
}
回答by Karel Frajták
The example on that page is
该页面上的示例是
moment('2010-10-20').isBetween('2010-10-19', '2010-10-25'); // true
there's no call to formatfunction as in your code so I suggest to try
没有format像您的代码那样调用函数，所以我建议尝试
moment('09:34:00').isBetween('08:34:00', '10:34:00');
