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Mean of an array rounded down to nearest integer in JavaScript
Problem
We are required to write a JavaScript function that takes in an array of numbers. Our function is supposed to return the average of the given array rounded down to its nearest integer.
Example
Following is the code −
const arr = [45, 23, 67, 68, 12, 56, 99];
const roundedMean = (arr = []) => {
const { sum, count } = arr.reduce((acc, val) => {
let { sum, count } = acc;
count++;
sum += val;
return { sum, count };
}, {
sum: 0, count: 0
});
const mean = sum / (count || 1);
return Math.round(mean);
};
console.log(roundedMean(arr));Output
Following is the console output −
53
Updated on: 20-Apr-2021
300 Views
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