Calculate the average of a key from an array of objects from parameter

[Marrows_ah]

I have an array of objects of a shopping list and want to calcule the average of the “price” key. I shortened the list only to “name” and “price”, but I still have problems

const finalM = (prList) => {
  let median = 0;
  (for var i in prList) {
    median += prList[i].price; 
  }
  return median / prList.length;

  const product = (ls) => {
    for(var i in ls){
      document.write("<h1> Product: " + ls[i].name + "</h1>");
      document.write("<h1> Price: " + ls[i].price + "</h1>");
    }
    document.write("<h1> Median: " + mediaf(ls[i].price) + "</h1>");
  }

And I call the function in HTML with these values

product([
  {"name": "Apple", "price": 3},
  {"nome": "Banana", "price": 5}
]);

[rpkamp]

This should work:

const average = (prList) => {
  let sum = 0;
  for (var i in prList) {
    sum += prList[i].price; 
  }

  return sum / prList.length;
}

const product = (ls) => {
  for (var i in ls) {
    document.write("<h1> Product: " + ls[i].name + "</h1>");
    document.write("<h1> Price: " + ls[i].price + "</h1>");
  }
  document.write("<h1> Average price: " + average(ls) + "</h1>");
}

P.S. Please don’t confuse average with median, they are completely different things.

[Marrows_ah]

Oh, sorry, thanks for the advice and thanks for helping me ! I’ve been looking for quite some time.