initial sorting implementation

src/Umbraco.Web.UI.Client/libs/observable-api/filter-frozen-array.function.ts

@@ -0,0 +1,13 @@
+/**
+ * @export
+ * @method filterFrozenArray
+ * @param {Array<T>} data - RxJS Subject to use for this Observable.
+ * @param {(entry: T) => boolean} filterMethod - Method to filter the array.
+ * @description - Creates a RxJS Observable from RxJS Subject.
+ * @example <caption>Example remove an entry of a ArrayState or a part of DeepState/ObjectState it which is an array. Where the key is unique and the item will be updated if matched with existing.</caption>
+ * const newDataSet = filterFrozenArray(mySubject.getValue(), x => x.id !== "myKey");
+ * mySubject.next(newDataSet);
+ */
+export function filterFrozenArray<T>(data: T[], filterMethod: (entry: T) => boolean): T[] {
+	return [...data].filter((x) => filterMethod(x));
+}

src/Umbraco.Web.UI.Client/libs/observable-api/index.ts

@@ -10,5 +10,6 @@ export * from './array-state';
 export * from './object-state';
 export * from './create-observable-part.function';
 export * from './append-to-frozen-array.function';
+export * from './filter-frozen-array.function';
 export * from './partial-update-frozen-array.function';
 export * from './mapping-function';