Question

I’m trying to check whether an html element with a certain id exists before doing some operations on that.

How can I check whether an id exists or not with dojo?

I saw in javascript we can use try catch. But i like a more clean way.

edit:

Doing it like this:

 var a = dojo.byId('myId');
 if(a){
     // something
 }

Answer 1

In dojo, it’s just the same as plain javascript. You should do:

var elem = dojo.byId('myId');
 if(elem != null){
     // something
 }

Hope this helps. Cheers