.diff不是moment.js的函数 [英] .diff is not a function on moments.js

问题描述

我尝试使用 moment.js 做一个小脚本，它显示了多少小时和分钟（单独分开） ）我有一个特定的小时。

I try to do a little script using moment.js, that shows me how many hours and minutes (seperate) I have until a specific hour.

var TimeA = moment('08:00:00', 'HH:mm:ss').format('HH:mm:ss');
var TimeB = moment('16:00:00', 'HH:mm:ss').format('HH:mm:ss');
var DiffAB = TimeA.diff(TimeB);
var DiffHours = DiffAB.format('H');
var DiffMinutes = DiffAB.format('mm');

console.log('TimeA: ' + TimeA);
console.log('TimeB: ' + TimeB);
console.log('Difference A-B: ' + DiffAB);
console.log('Diff Hours: ' + DiffHours);
console.log('Diff Minutes: ' + DiffMinutes);

这就是我到目前为止所尝试的内容。但是我收到以下错误：

Thats what I've tried so far. But I get the following error:

TimeA.diff is not a function

我不确定我在这里做错了什么。

I am not sure what I am doing wrong here.

推荐答案

当你调用 .format（）时，你得到的是一个字符串。你不再处理片刻物体了。

When you call .format(), what you get back is a String. You're no longer dealing with a moment object.

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