What does the slot attribute do here?

Question

Vue.js

What does the slot attribute do here? Taken from here https://bootstrap-vue.js.org/docs/components/carousel/

<b-carousel-slide>
        <img
          slot="img" // Что здесь делает атрибут slot?
          class="d-block img-fluid w-100"
          width="1024"
          height="480"
          src="https://picsum.photos/1024/480/?image=55"
          alt="image slot"
        >
      </b-carousel-slide>

Answer 1

I do not approve. But most likely, the component has a named img slot.