13.27 - Code problem


Hi, I have a little bit of an issue right here. I'm now at: Introduction to Objects I > Loop the Loop
For some reason it isn't printing what I want it to print, which is the family array.

This is the error I get when I run the code:
Oops, try again. It looks like the object at index 0 was not created with the Person constructor

// Our Person constructor
var Person = function(name, age) {
    this.name = name;
    this.age = age;

// Now we can make an array of people
var family = new Array();
family[0] = new Person("alice", 40);
family[1] = new Person("bob", 42);
family[2] = new Person("michelle", 8);
family[3] = new Person("timmy", 6);

// loop through our new array
var i;
for (i = 0; i <= family; i++) {

Weird thing is if I do the following in the for loop:

var i;
for ( i = 0; i < 4; i++) {

then it is printing: 0123
So I am pretty sure it isn't in the for loop itself, but in selecting the array or something.

Help is really appreciated!

Thanks in advance,


Check your condition of for loop, we loop over certain amount of length (say a definite number)?

Take a look at instructions & Theory again


lol you're right, when you said (A definite number?) I was like family.length and it works now totally fine! You're amazing :smiley:


family.length is preferable to hard-coding a number such as 4, although it works for short arrays where you can easily count the length. In your original code you simply had a typo, "i <= family", but it should be "i < family.length".


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