The Web Component Slot element - HTML - MDN Web Docs

mdn slot We'll discuss using the template> and slot> elements, the slot attribute, and JavaScript to create a template with an encapsulated Shadow DOM. We'll then re-use. The slot property of the Element interface returns the name of the shadow DOM slot the element is inserted

mdn slot login, The slot> HTML element—part of the Web Components technology suite—is a placeholder inside a web component that you can fill with your.