Object amount

Question

Let’s say I have an object...
var food = {1: “banana”, 2: “apple”,}
How do I count the amount of food using only one line of code?
Other languages example: #words
#words will output 2

Answer 1

Javascript object not like array, does not have a length property.
You need to get the keys array of the object, then only get the length of the keys array.
eg. console.log(Object.keys(food).length);

Answer 2

I tried .length, and it caused an error.

Answer 3

return food.length;

Answer 4

what error ? can you show me?