Document.preferredStyleSheetSet - Web APIs 编辑

Obsolete

This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

The preferredStyleSheetSet property returns the preferred style sheet set as set by the page author.

Syntax

preferredStyleSheetSet = document.preferredStyleSheetSet

On return, preferredStyleSheetSet indicates the author's preferred style sheet set. This is determined from the order of style sheet declarations and the Default-Style HTTP header.

If there isn't a preferred style sheet set defined by the author, the empty string ("") is returned.

Example

if (document.preferredStyleSheetSet) {
  console.log("The preferred style sheet set is: " + document.preferredStyleSheetSet);
} else {
  console.log("There is no preferred style sheet.");
}

Browser compatibility

BCD tables only load in the browser

See also

• document.lastStyleSheetSet
• document.selectedStyleSheetSet
• document.styleSheetSets
• document.enableStyleSheetsForSet()