get most occurring elements in array JavaScript

Question

I have an array that I want to get the most occurring elements,

First scenario

let arr1 = [\'foo\', \'foo\', \'foo\', \         


        

Answer 1

You can also use a for ofloop and ìn

For example

const arrayFrecuent = [3, 1, 2, 1, 3, 2, 5, 4, 2, 10];

const mostFrecuent = givenArray => {
  let counts = {};
  let maxValue = -1;
  let maxItem = null;
  for (const num of givenArray) {
    if (!(num in counts)) {
      counts[num] = 1;
    } else {
      counts[num] = counts[num] + 1;
    }
    if (counts[num] > maxValue) {
      maxValue = counts[num];
      maxItem = num;
    }
  }
  return maxItem;
};

const mostFrecuentNumber = mostFrecuent(arrayFrecuent);

console.log("mostFrecuentNumber", mostFrecuentNumber);