How to check the RTB rendering of Yandex ads?

Question

JavaScript

Good morning.
Yandex has the onRender Callback function, which is called after the ad has been rendered.
Something I can’t figure out how to check that rendering has not occurred.
For example:

onRender: function(data) {
// Что то
}

And then somewhere on the page, check this "something" and if it's empty, then execute your code.

Answer 1

This can be done using the Yandex code itself, a direct link to the paragraph about this: https://yandex.ru/support/partner2/web/products-rt...