fix: tests and throttle return type

src/promises.ts

@@ -42,7 +42,7 @@ export function sleep(
  * @see {@link debounce}
  */
 export function throttle<T>(
-  callback: Maybe<Fn<T>>,
+  callback: Fn<T>,
   delay = 250,
   debounceMode = false,
   noTrailing = false,
@@ -78,9 +78,9 @@ export function throttle<T>(
     /**
      * Execute `callback` and update the `lastExec` timestamp.
      */
-    async function exec() {
+    function exec() {
       lastExec = Date.now();
-      await callback.apply<any, any[], T>(self as any, args as any[]);
+      return callback.apply<any, any[], T>(self as any, args as any[]);
     }
     /**
      * If `debounceMode` is true (at begin) this is used to clear the flag
@@ -100,7 +100,7 @@ export function throttle<T>(
        * In throttle mode, if `delay` time has been exceeded, execute
        * `callback`.
        */
-      exec();
+      return exec();
     } else if (noTrailing !== true) {
       /**
        * In trailing throttle mode, since `delay` time has not been

tests/throttle_test.ts

@@ -3,13 +3,13 @@
 /// <reference lib="esnext" />
 
 import { assertEquals } from "../deps_test.ts";
-import { debounce, sleep, throttle } from "../src/throttle.ts";
+import { debounce, sleep, throttle } from "../src/promises.ts";
 
 Deno.test({
   name: "throttle",
   ignore: true,
   fn(test) {
-    const func = (...args: any[]) => {
+    const func = (...args: any[]): any[] => {
       return args;
     };
     const throttled = throttle(func, 100);
@@ -39,7 +39,7 @@ Deno.test({
       return args;
     };
     const throttled = throttle(func, 100);
-    throttled.clear();
+    throttled.cancel();
     const result = throttled(1, 2, 3);
     assertEquals(result, [1, 2, 3]);
   },
@@ -53,7 +53,7 @@ Deno.test({
       return args;
     };
     const debounced = debounce(func, 100);
-    debounced.clear();
+    debounced.cancel();
     const result = debounced(1, 2, 3);
     assertEquals(result, [1, 2, 3]);
   },