Javascript Object Multiple Links

Question

Just (hopefully) a quick question to figure out how Javascript handles objects. I'm not used to JS, so it came as a surprise, so I want to double check!

Let's say I have an object:

function food(price) { this.price = price || 100; } var myFood = new food(100); 

And then save this object in two arrays:

 var foo = []; var bar = []; foo.push(myFood); bar.push(myFood); 

Do I understand correctly that all I do here is store the GUIDE for myFood? I do not create a copy of the object? So if I were, say:

 foo[0].price = 50; 

Will there be [0] .price ALSO == 50, since it stores a link to myFood, and this is myFood, which actually influenced its price, not foo or bar?

Thank you very much in advance! I saw several threads that mention this issue as part of a wider publication, but I just wanted to get all this to make sure! Best wishes

Answer 1

Yes, javascript will just click the link, not the copy of the object.

Answer 2

You're right. But it's incredibly easy to do it and see what happens.

http://jsfiddle.net/67haQ/

It clearly seems to you that he already knows how it works, playing a little for confirmation seems easier than the SO question.

Just say