subtract()

moment.duration().subtract(Number, String);
moment.duration().subtract(Number);
moment.duration().subtract(Duration);
moment.duration().subtract(Object);

通过减去时间来更改原始的时长。

用于创建时长的相同的键和速记可以在此处用作第二个参数。

var a = moment.duration(3, 'd');
var b = moment.duration(2, 'd');
a.subtract(b).days(); // 1

注意，将无效的时长添加到任何其他时长会产生无效的时长。

moment.duration().subtract(Number, String);
moment.duration().subtract(Number);
moment.duration().subtract(Duration);
moment.duration().subtract(Object);

Mutates the original duration by subtracting time.

The same keys and shorthands used to create durations can be used here as the second argument.

var a = moment.duration(3, 'd');
var b = moment.duration(2, 'd');
a.subtract(b).days(); // 1

Note that adding an invalid duration to any other duration results in an invalid duration.