Can I use an object in function's parameter in javascript?

Question

I need to use:

var obj=document.getElementsByClassName[n];
setInterval("somefunc("+obj+");",10);

When I'm trying to run this code, I get "Uncaught SyntaxError: Unexpected identifier". I know about this problem with setTimeout("alert("+str+");) , when I should use .toString() , but what if I need to pass an object in function?

Thank you.

Answer 1

Yes you can but like this:

setInterval(function(){
   somefunc(obj);
},10);

So here is how your code should be:

var obj = document.getElementsByClassName(n);
setInterval(function(){
   somefunc(obj);
},10);

---

You had these problems with your previous code:

• You were calling your function immediately by passing param eg someFun(obj)
• You were using eval() function behind the scenes by wrapping your code in quotes.

Answer 2

setInterval(function () { somefunc(obj) }, 10);

Answer 3

you can use it like

var obj=document.getElementsByClassName[n];
setInterval(function() {return somefunc(obj)},10);