Edabit

You are given two arrays that each contain data that represents the min and max weather temperatures for each day of the week.

The records array contains the all-time record low/high temperatures for that day of the week.

 [[record low, record high], ...]

The current week array contains the daily low/high temperatures for each day of the current week.

 [[daily low, daily high], ...]

A daily high temperature is considered a new record high if it is higher than the record high for that day of the week. A daily low temperature is considered a new record low if it is lower than the record low for that day of the week.

Compare the daily low/high temperatures of the current week to the record lows/highs and return an array with the updated record temperatures.

  • There may be multiple record temperatures in a week.
  • If there are no broken records return the original records array.

Example

 //             sun       mon      tues       wed      thur      fri       sat recordTemps([[34, 82], [24, 82], [20, 89],  [5, 88],  [9, 88], [26, 89], [27, 83]],             [[44, 72], [19, 70], [40, 69], [39, 68], [33, 64], [36, 70], [38, 69]])  ➞           [[34, 82], [19, 82], [20, 89], [5, 88], [9, 88], [26, 89], [27, 83]]

The previous record low for Monday was 24. The current week's low for Monday was 19. So 19 replaces 24 as Monday's new record low.

Notes

  • There won't be a record high and record low set on the same day.
  • Index 0 will always be the low and index 1 will always be the high [low, high].
  • For reference these temps are °F but you do not need to convert any temperatures.

Solution:

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function recordTemps(records, currentWeek) {   return records.map((record, i) => {     return [       Math.min(record[0], currentWeek[i][0]),       Math.max(record[1], currentWeek[i][1]),     ];   }); }
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