shadow dom slot
Pass Markup into Slots | Create Lightning Web Components | Lightning ...
However, the DOM elements that are passed into the slot aren’t part of the component’s shadow tree. To access elements passed via slots, a component calls this.querySelector() and this.querySelectorAll().
What are Web - Câu hỏi phỏng vấn HTML
< slot >. Dùng trong Web Components, chỉ định vị trí chèn nội dung. < shadow >. Tạo vùng bóng đổ trong Shadow DOM (được dùng trong Web Components, ít phổ biến).
HTML slot global attribute - HTML | MDN
The slot global attribute assigns a slot in a shadow DOM shadow tree to an element: An element with a slot attribute is assigned to the slot created by the element whose name attribute's value matches that slot attribute's value. You can have multiple elements assigned to the same slot by using the same slot name. Elements without a slot attribute are assigned to the unnamed slot, if one exists.