How to multiply an object to itself?

Good evening, a question:
Have the jQuery object (result parent.children()), I need to multiply an object by itself. That is, DOM elements which are included in this object is duplicated in the same object (each object would add more time).
Conclusion parent.children();
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July 2nd 19 at 18:06
2 answers
July 2nd 19 at 18:10
Solution
"multiply itself", or "times two"? :)

if I understand correctly what you need, then:
parent.children().clone().appendTo(parent);

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