javascript - check value of $(this.el) in backbone -

I'm just starting with the spinal cord, javascript, jquery and the like. I am looking at a backbone that, from this post, it seems that I have to demote my schedule My Event ID is bound to an element with #createBtn ID, so I tried to do it:

  $ (this.el) .undelegate ('# createBtn', 'click');   
 When the visualization of my spinal cord begins, this event registers it:  
  Event: {click on #createBtn ":" CreateNewTemplate ",   
 I'm still talking about my usual button. I'm guessing that is not working in any way and I know what $ (this.l.) is actually indicating. Whole JS  this  and everything is still misleading to me, so I'm not sure whether $ (this.L) will also work in the method that I am trying to do or something else How do I need $ (This.el) behavior, or how can I see that object, any debugging signal of it will be super helpful thanks!   
 
 
 Try console.log to output the value of this and it is right before your undelegate . This way ...  
  console.log ("this is it", this)   
  console.log ("This is it. L ", this.L)   
 Then see the output in the browser console.