函数返回jQuery元素返回undefined

Question

I want to write a JS function which returns the first button element from the given container, I have written following code,

let getLastWizardFooterBtn = function(wizardContainer) {
  let wizardFooter = $(wizardContainer).find('.wizard-footer');
  return $(wizardFooter).find('button:enabled:last');
};

But the issue is that even-though I have a DOM element present, this function returns undefined.

Here are the screenshots from Chrome developer tools.

But as I have debugger set on this line and when I run the same function in Console Tab, I get proper output.

The strange thing is that the variables which I declare are showing undefined but those auto generated variables starting with _ is showing correct values.

Can someone please point out why it is behaving like this?

(Because as you can see that I am listening KeyDown event on that container so that DOM element is present for sure.)

Thanks in advance.

======================

UPDATE: Issue got resolved once I change the variable names as suggested by Christoph Herold in comment sections

Answer 1

I assume, something breaks during your minification process, or some code just wasn't properly updated. Try renaming your variable or using the unminified code to see, if that at least works. The basic code looks correct.