Document: lastStyleSheetSet property
Deprecated
Avoid using this feature in new projects. This feature may be a candidate for removal from web standards or browsers.
Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.
The Document.lastStyleSheetSet property returns the last enabled style sheet set. This property's
value changes whenever the document.selectedStyleSheetSet property is
changed.
Value
The style sheet set that was most recently set. If the current style sheet set has not been changed by setting document.selectedStyleSheetSet, the returned value is null.
Note:
This value doesn't change when
document.enableStyleSheetsForSet() is called.
Examples
let lastSheetSet = document.lastStyleSheetSet;
if (!lastSheetSet) {
lastSheetSet = "Style sheet not yet changed";
} else {
console.log(`The last style sheet set is: ${lastSheetSet}`);
}