kyu8_find_nearest_square_number.js

/**
 * Your task is to find the nearest square number, nearest_sq(n) or nearestSq(n), of a positive integer n;
 * 
 * For example, if n = 111, then nearest\_sq(n) (nearestSq(n)) equals 121, since 111 is closer to 121, the square of
 * 11, than 100, the square of 10;
 * 
 * If the n is already the perfect square (e.g. n = 144, n = 81, etc.), you need to just return n;
 * 
 * Good luck :)
 * 
 * https://www.codewars.com/kata/5a805d8cafa10f8b930005ba
 * 
 */


function nearestSq(n){
    return Math.pow(Math.round(Math.sqrt(n)), 2);
}