what is the meaning of jQuery selector carry a second parameter? -

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When I read the book, I found that I do not understand this 

  $ ("Span.task-name", $ function) .text (taskName);

work-name is the class of the term tag

Can anyone help me with that? What is the correct meaning of doing this?

The second parameter is for reference:

this .find ( ) is similar, where it takes a jquery selection and tries to refine it with a new selector. For example, if you type span.span1 to # div1 , you will do so: 

  $ ("span.span1", "# div1");

It is the same: 

  $ ("# div1 span.span1");

Between the two, there is actually only a small difference in performance, but there is no difference in performance.


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