index.js

const { concurrentApiCalls } = require("./concurrentApiCalls");
function insertionSort(list) {
  const len = list.length
  for (let i = 1; i < len; i++) {
    if (list[i] < list[0]) {
      // move current element to the first position
      list.unshift(list.splice(i, 1)[0])
    }
    else if (list[i] > list[i - 1]) {
      // maintain element position
      continue
    }
    else {
      // find where element should go
      for (let j = 1; j < i; j++) {
        if (list[i] > list[j - 1] && list[i] < list[j]) {
          // move element
          list.splice(j, 0, list.splice(i, 1)[0])
        }
      }
    }
  }
  return list
}

const list = [4, 2, 3, 1, 5]

const sorted = insertionSort(list)

console.log(sorted)