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.

Sarfraz · Accepted Answer · 2012-03-10 04:56:17Z

2

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.

edited Mar 10, 2012 at 4:56

answered Mar 7, 2012 at 8:09

Sarfraz

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Ohas · Accepted Answer · 2012-03-07 08:10:05Z

1

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

answered Mar 7, 2012 at 8:10

Ohas

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Comments

user160820 · Accepted Answer · 2012-03-07 08:14:40Z

1

you can use it like

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

answered Mar 7, 2012 at 8:14

user160820

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