Finding the nth power of array element present at nth index using JavaScript

Problem

We are required to write a JavaScript function that takes in an array of numbers. Our function should map the input array to another array in which each element is raised to its 0-based index.

And finally, our function should return this new array.

Example

Following is the code −

const arr = [5, 2, 3, 7, 6, 2];
const findNthPower = (arr = []) => {
   const res = [];
   for(let i = 0; i < arr.length; i++){
      const el = arr[i];
      const curr = Math.pow(el, i);
      res[i] = curr;
   };
   return res;
};
console.log(findNthPower(arr));

Output

[ 1, 2, 9, 343, 1296, 32 ]