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| const str2sec = str => str.split(':').reduce((acc, val)=>Number(acc)*60 + Number(val)); | |
| const sec2str = t => t/60|0 > 0 ? sec2str(t/60|0) + ':' + t%60 : t + ''; | |
| //demo below | |
| var timeStr = '3:44:45.466'; // 3 hour, 44 min, 45 sec, 466 ms | |
| var timeSec = str2sec(timeStr); // 13485.466 sec | |
| sec2str(timeSec); // "3:44:45.46600000000035" |
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