Length of a JavaScript object

Question

If I have a JavaScript object, say

var myObject = new Object(); 

myObject["firstname"] = "Gareth"; 

myObject["lastname"] = "Simpson"; 

myObject["age"] = 21;

is there a built-in or accepted best practice way to get the length of this object?

Answer 1

The best way to get the length of this object is to use the below-mentioned way:-

Object.keys(myArray).length

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