How to check if an element is not placed at noindex?

Question

JavaScript

There was such task
there is an element
<a href="#"><img src="img.png"></a>
It is necessary to check whether it is located inside the noindex tag using pure javascript.
those. check if element indexing is disabled.
How to do it?

Answer 1

there is such a thing as .closest()
demo: jsfiddle.net/y5vsnk6j
True support is not very good yet https://developer.mozilla.org/en/docs/Web/API/Elem...
But there is a polyfill https://learn .javascript.ru/task/polyfill-closest