javascript - [CSS + JS] How to use JS code to get all calculated styles of elements and corresponding values? ?

Question

Like the title

How to get?

Styles: Only and should contain inline styles, internal styles ,external styles. There should be no browser default attributes and values

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Answer 1

getComputedStyle

Answer 2

Gu Bai has asked this question, but the answer he got is always:

1. Get all attributes (no value)

2. Get individual values ​​(specified)

Cannot be found on the Internet:

{
Use JS code to obtain all styles of elements after calculation and with corresponding values ​​;
}

Maybe my search method is wrong, so I came to SF to find answers from experts