The HTML element specifies relationships between the current document and an external resource. This element is most commonly used to link to stylesheets, but is also used to establish site icons (both "favicon" style icons and icons for the home screen and apps on mobile devices) among other things.| MDN Web Docs
The map() method of Array instances creates a new array populated with the results of calling a provided function on every element in the calling array.| MDN Web Docs
