ProductsArray.js

const productsArray = nums =>{
  
	if( nums == undefined || nums == null ) return [];
	if( !Array.isArray(nums) ) return [];
	if( nums.length == 0 ) return [];
	if( nums.length == 1 ) return[0];

	let product = 1;
	for(let [index,number] of nums.entries()){
		product  = number * product;
	}
	
	for( let [j,number] of nums.entries() ){
		nums[j] = product/number;
	}

	return nums;
  
}

Hello @meekg33k, thank you for your feedback as always.

Please find below my comments.

I have made two changes to the function.

1. To handle the edge case of an array length of 1
2. Rather than return a new array with a map function, I have modified each index of the "nums" array and return the input back.

I would be happy to know your thought about this approach.