Sum without highest and lowest number

❓ Sum without highest and lowest number

Q. Sum all the numbers of a given array ( cq. list ), except the highest and the lowest element ( by value, not by index! ).

The highest or lowest element respectively is a single element at each edge, even if there are more than one with the same value.

Mind the input validation.

Example
{ 6, 2, 1, 8, 10 } => 16
{ 1, 1, 11, 2, 3 } => 6
Input validation
If an empty value ( null, None, Nothing etc. ) is given instead of an array, or the given array is an empty list or a list with only 1 element, return 0.

✔ Solution

//#my solution
function sumArray(array)  {
    if(array && array.length > 1) {
        const sortedArray = array.sort((a,b) => a - b).slice(1, -1)
        return sortedArray.reduce((acc, cur) => acc + cur, 0)
    }

    return 0
}

//#other solution
function sumArray(array) {
  return Array.isArray(array) && array.length > 1
    ? array.reduce((s, n) => s + n, 0) - Math.min(...array) - Math.max(...array)
    : 0
}