HackerRank三个月挑战第一周

Time Conversion

Time Conversion | HackerRank

给定12小时AM/PM格式的时间，将其转换为军用（24 小时）时间。

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function timeConversion(s) {
    // Write your code here
   let [hours,minutes,seconds] = s.split(":")
    const period = seconds.slice(-2) //AM or PM
    seconds = seconds.slice(0, 2); 
    hours = parseInt(hours)  
    if(period === 'AM'){
        if(hours === 12){
            hours = 0
        }
        } else {
            if(hours !== 12){
                hours +=12
            }
        }
    const militratHours = String(hours).padStart(2,'0')
    return `${militratHours}:${minutes}:${seconds}`
}