Where Do I Belong

whereDoIBelong.js

// Return the lowest index at which a value (second argument) should be inserted into an array (first argument) once it has been sorted. The returned value should be a number.

function getIndexToIns(arr, num) {
    arr.sort((a,b)=>{
      return a - b;
    });
  for(var i in arr) {
    if(arr[i] >= num) 
      return parseInt(i);
    }
    return arr.length;
}

console.log(getIndexToIns([5, 3, 20, 3], 5));
console.log(getIndexToIns([40, 60], 50));
console.log(getIndexToIns([2, 5, 10], 15));