从时间格式中删除前导零 [英] Remove leading zeros from time format

问题描述

我收到一个这样格式的字符串'HH:mm:ss'.我想删除前导零但始终保留最后四个字符，例如 m:ss 即使 m 将是零.我正在格式化音频时长.

I am receiving a string in this format 'HH:mm:ss'. I would like to remove the leading zeros but always keeping the the last four character eg m:ss even if m would be a zero. I am formatting audio duration.

示例:

00:03:15 => 3:15
10:10:10 => 10:10:10
00:00:00 => 0:00
04:00:00 => 4:00:00
00:42:32 => 42:32
00:00:18 => 0:18
00:00:08 => 0:08

00:03:15 => 3:15
10:10:10 => 10:10:10
00:00:00 => 0:00
04:00:00 => 4:00:00
00:42:32 => 42:32
00:00:18 => 0:18
00:00:08 => 0:08

推荐答案

您可以使用此替换:

var result = yourstr.replace(/^(?:00:)?0?/, '');

演示

或更好:

var result = yourstr.replace(/^0(?:0:0?)?/, '');

演示

要处理 Matt 示例(见评论)，您可以将模式更改为:

To deal with Matt example (see comments), you can change the pattern to:

^[0:]+(?=\d[\d:]{3})

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