Time Conversion

Given a time in 12-hour AM/PM format, convert it to military (24-hour) time.

Note: Midnight is 12:00:00AM on a 12-hour clock, and 00:00:00 on a 24-hour clock. Noon is 12:00:00PM on a 12-hour clock, and 12:00:00 on a 24-hour clock.

Function Description

Complete the timeConversion function in the editor below. It should return a new string representing the input time in 24 hour format.

timeConversion has the following parameter(s):

• s: a string representing time in hour format

Input Format

A single string containing a time in 12-hour clock format (i.e.: hh:mm:ssAM or hh:mm:ssPM), where and .

Constraints

• All input times are valid

Output Format

Convert and print the given time in 24-hour format, where .

Sample Input 0

1

07:05:45PM

Sample Output 0

1

19:05:45

Solution

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function timeConversion(s) {
    let time = s.match(/(\d|\:)/ig);
    let tag = s.match(/(A|P)/ig).join('');

    return time.join('').split(':').map((v, i) => { 
        return i === 0 ? (
            tag.match(/P/i)
                ? Number(v) === 0 ? '00' : (Number(v) % 12) + 12
                : Number(v) % 12 === 0 ? '00' : v
        ) : v
    }).join(':')
}