javascript - About Chrome browser debugging

Question

I’m not sure 0: What does this mean? In addition, how to obtain the value inside 0:? Thank you. Can you tell me?

Answer 1

$(element).get(0) || $(element)[0]... 0 is its key, which can be understood as an array-like object. It's just that this attribute refers to this dom object.

Answer 2

This 0 is the subscript of the array. In fact, if you pay attention, here is a reminder that the array queried by your selector has 1 element.
The text inside is dom[0].text(), or dom[0].html().

Can I complain about how small your screenshots are? ?