moment js：自定义格式的字符串到天的持续时间

Question

I'm have a rather wiered string with time. Something like this - "2.23:59:59.99" . That means that first number before dot is a day count (2 days) and other is a time count - 23 hours 59 minutes 59 seconds and 9900 - milliseconds (or maybe 99 milliseconds). So I need to convert it to decimal number, like 2.99 . How can I do it using moment.js ?

Answer 1

You can simply create a moment duration from your "2.23:59:59.99" string

As of 2.1.0 , moment supports parsing ASP.NET style time spans. The following formats are supported.

The format is an hour, minute, second string separated by colons like 23:59:59 . The number of days can be prefixed with a dot separator like so 7.23:59:59 . Partial seconds are supported as well 23:59:59.999 .

and then get its values in days using asDays()

moment.duration().asDays() gets the length of the duration in days.

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To get "2.23:59:59.99" back from 2.99 , you can create a duration using moment.duration(Number, String) and use format() method of moment-duration-format plug-in (using precision parameter)

 // 2.23:59:59.99 to 2.99 const dur1 = moment.duration("2.23:59:59.99"); const durAsDays = dur1.asDays(); console.log(durAsDays); // 2.99 to 2.23:59:59.99 const dur2 = moment.duration(durAsDays, 'days'); console.log(dur2.format("d.HH:mm:ss", 2)); 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.23.0/moment.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/moment-duration-format/2.2.2/moment-duration-format.min.js"></script> 

Answer 2

moment.duration('2.23:59:59.99').asDays() 

请参考Moment JS .asDays（）方法