progress

ui/src/core/extensions/extensions.ts

@@ -1,6 +1,18 @@
 import { ArrayExtensions } from "./array";
+import { StringExtensions } from "./string";
 
-export const extensions = () =>{
-    ArrayExtensions()
+declare global {
+  interface Array<T> {
+    // @strict: The parameter is determined whether the arrays must be exactly the same in content and order of this relationship or simply follow the same requirements.
+    equals(array: Array<T>, strict: boolean): boolean;
+    lastElement(): T | undefined;
+    isEmpty(): boolean;
+  }
+  interface String {
+    isEmpty(): boolean;
+  }
 }
- 
+export const extensions = () => {
+  ArrayExtensions();
+  StringExtensions();
+};