Count of positives-sum of negatives.js

// DESCRIPTION:
// Given an array of integers.

// Return an array, where the first element is the count of positives numbers and the second element is sum of negative numbers. 0 is neither positive nor negative.

// If the input is an empty array or is null, return an empty array.

// Example
// For input [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, -11, -12, -13, -14, -15], you should return [10, -65].

//My Solution
function countPositivesSumNegatives(input) {
  
    if(input == null || input.length == 0){return []}
    
    let count = 0
    let sum = 0
    
    for(let i=0; i < input.length; i++){
      if(input[i]> 0){count += 1}
      else{sum += input[i]}
      
    }
    
    return [count, sum]
  }