get min diff between time items in array

getMinDiff.js

const getDiff = (date1, date2) => {
  let diff = date1 - date2
  const result = (diff/60)
  return result;
}

const parseToSeconds = (time)=> {
  const hrsMins = time.split(':')
  const secHrs = parseInt(hrsMins[0],10) * 60 * 60
  const secMins = parseInt(hrsMins[1],10) * 60
  return secHrs + secMins
}

const helpEsther = (esthersInput=[]) => {
  if(esthersInput.length < 1) return 0;
  if(esthersInput.length === 1) return parseToSeconds(esthersInput[0])/60;
  //filter out invalid values
  const validRegex = /^([0-1]?[0-9]|2[0-3]):[0-5][0-9]$/;
  const cleanedInput = esthersInput.filter(each => validRegex.test(each));
  
  const timeDiffs = [];

  const sortAndSaveTime = (firstTime, secondTime) => {
    
    const date1 = parseToSeconds(firstTime)
    const date2 = parseToSeconds(secondTime)
    
    if(date1 > date2){
      timeDiffs.push(getDiff(date1,date2))
      return 1
    }else if(date2 > date1){
      timeDiffs.push(getDiff(date2, date1))
      return -1
    }
    timeDiffs.push(0)
    return 0
  }
  
 cleanedInput.sort(sortAndSaveTime)
  return Math.min(...timeDiffs)
}
console.log(helpEsther(['16:00','12:01', '12:02', '12:20']))

Hello @daviddamilola, congratulations 🎉 your solution has been selected as one of the winning solutions in Week 7 of #AlgorithmFridays.

Your solution is clean and readable and passed the test cases. I particularly like how you structured your code into separate functions. Really neat!

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