https://github.com/Asabeneh/30-Days-Of-JavaScript/blob/master/05_Day_Arrays/05_day_arrays.md#exercise-level-3

• array destructuring with... in order to use Math.min() and Math.max() (because they only works on numbers and not on an array)
• reduce in order to calculate a sum of elements necessary to an average
• Math.abs() to get only absolute numbers (positive)
• ternary operator to compare two values

Vanilla Javascript