Note:
 Convert elements into number with fractions. (Fractions are mins)
 Sort
 Compare diff. Note that we need to compare
last one
with first one
in case of edge case.
Question:
Given a list of 24hour
clock time points in “HH:MM
“ format, return the minimum minutes difference
between any two timepoints in the list.
Example:
1 2
 Input: timePoints = ["23:59","00:00"] Output: 1

Code:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

var findMinDifference = function(timePoints) { timePoints = timePoints.map(e => { return e.replace(/:/g, '.')  0; }) timePoints.sort((a, b) => a  b); let ans = Infinity; for (let i = 1; i < timePoints.length; i++) { const hrDiff = (~~(timePoints[i])  ~~(timePoints[i  1])) * 60; const minDiff = (((timePoints[i]) % 1) * 100)  ((timePoints[i  1] % 1) * 100); if (hrDiff + minDiff < ans) ans = hrDiff + minDiff; if (i === timePoints.length  1) { const hDiff = (23  ~~(timePoints[i])) * 60 + ~~timePoints[0] * 60; const mDiff = (60  (timePoints[i] % 1) * 100) + ((timePoints[0] % 1) * 100); if (hDiff + mDiff < ans) ans = hDiff + mDiff; } } return ans; };
