如何使用momentjs检查当前时间是否介于两次之间？

Question

之前曾多次询问过这个问题，但我被卡住了！

我试图做的

    let now = moment().format('LT'); // 11:28 PM
    let close = moment('2019-04-26T22:00:18.000Z').format('LT'); // 1:00 AM
    let open = moment('2019-04-26T13:00:32.000Z').format('LT'); // 4:00 PM
    console.log(moment(now).isBetween(moment(open), moment(close))); // always return false
    console.log(moment(now).isBetween(moment(open), moment(close), "hour")); // always return false
    console.log(moment(now).isBetween(open, close, "hour")); // always return false
    console.log(moment(now).isBetween(open, close)); // always return false

知道为什么我总是假的吗？

Answer 1

如果您只想比较时间，可以在某个小时和分钟创建一个时刻对象，其他设置将默认为今天。 调用.format将返回一个字符串，但不会修改调用对象。 您的代码将今天的日期和时间与不同日期的时间进行比较，因此总是错误的。 此外，不需要在另一个Moment调用中包含一个时刻对象。

 // Opening and Closing Time data objects const openingTime = { hour: 8, minute: 00 }, closingTime = { hour: 20, minute: 00 }; // Create Moment objects const now = moment(), openToday = moment(openingTime), openYesterday = moment(openingTime).subtract(1, 'day'), closeToday = moment(closingTime), closeTomorrow = moment(closingTime).add(1, 'day'); let openForBusiness = false; if (openToday.isBefore(closeToday)) { openForBusiness = now.isBetween(openToday, closeToday); } else { openForBusiness = now.isBetween(openYesterday, closeToday) || now.isBetween(openToday, closeTomorrow); } console.log("openForBusiness:", openForBusiness); 

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