Merge pull request #238 from siberiacancode/#230

#230 🧊 add this for throttle and debounce

src/utils/helpers/debounce.ts

@@ -1,11 +1,11 @@
-export const debounce = <Params extends unknown[]>(
+export function debounce<Params extends unknown[]>(
   callback: (...args: Params) => void,
   delay: number
-): ((...args: Params) => void) => {
+): ((...args: Params) => void) {
   let timer: ReturnType<typeof setTimeout>;
 
-  return function (...args: Params) {
+  return function (this: any, ...args: Params) {
     clearTimeout(timer);
-    timer = setTimeout(() => callback(...args), delay);
+    timer = setTimeout(() => callback.apply(this, args), delay);
   };
 };

src/utils/helpers/throttle.ts

@@ -4,9 +4,9 @@ export const throttle = <Params extends any[]>(
 ): ((...args: Params) => void) => {
   let isCalled = false;
 
-  return function (...args) {
+  return function (this: any, ...args) {
     if (!isCalled) {
-      callback(...args);
+      callback.apply(this, args);
       isCalled = true;
       setTimeout(() => {
         isCalled = false;