We are required to write a JavaScript function that takes in an array of Number. Then the function should return the average of its elements excluding the smallest and largest Number.
Example
The code for this will be −
const arr = [5, 3, 5, 6, 12, 5, 65, 3, 2]; const findExcludedAverage = arr => { const creds = arr.reduce((acc, val) => { let { min, max, sum } = acc; sum += val; if(val > max){ max = val; }; if(val < min){ min = val; }; return { min, max, sum }; }, { min: Infinity, max: -Infinity, sum: 0 }); const { max, min, sum } = creds; return (sum - min - max) / (arr.length / 2); }; console.log(findExcludedAverage(arr));
Output
The output in the console −
8.666666666666666