Write Higher Order Arrow Functions how should i use map function to multiply it value

JavaScript
#1

Tell us what’s happening:

Your code so far


const realNumberArray = [4, 5.6, -9.8, 3.14, 42, 6, 8.34];
const squareList = (arr) => {
  "use strict";
  // change code below this line
  //const squaredIntegers = [16, 1764, 36];
  const another = arr.map(function(task,index,array){
   squaredIntegers[0] =  task[0] * 4;
   squaredIntegers[1] =  task[4] * 42;
   squaredIntegers [2] =  task[5] * 5;

     return squaredIntegers;
  });
  // change code above this line
 
};
// test your code
const squaredIntegers = squareList(realNumberArray);
console.log(squaredIntegers);

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/es6/write-higher-order-arrow-functions

#2

Here is how you should approach this challenge.

You need to first filter through the array by integers. Then map through the array and square each of them.

#3