refactor: fixup TS types

Author: keithamus

decorators.ts

@@ -1,7 +1,7 @@
 import {debounce as db, throttle as th, ThrottleOptions} from './index'
 
-export function throttle(wait = 0, opts: ThrottleOptions = {}) {
-  return (proto: unknown, name: string, descriptor: PropertyDescriptor) => {
+export function throttle(wait = 0, opts: ThrottleOptions = {}): MethodDecorator {
+  return (proto: unknown, name: string | symbol, descriptor: PropertyDescriptor) => {
     if (!descriptor || typeof descriptor.value !== 'function') {
       throw new Error('debounce can only decorate functions')
     }
@@ -11,8 +11,8 @@ export function throttle(wait = 0, opts: ThrottleOptions = {}) {
   }
 }
 
-export function debounce(wait = 0, opts: ThrottleOptions = {}) {
-  return (proto: unknown, name: string, descriptor: PropertyDescriptor) => {
+export function debounce(wait = 0, opts: ThrottleOptions = {}): MethodDecorator {
+  return (proto: unknown, name: string | symbol, descriptor: PropertyDescriptor) => {
     if (!descriptor || typeof descriptor.value !== 'function') {
       throw new Error('debounce can only decorate functions')
     }

test/index.ts

@@ -72,7 +72,7 @@ describe('throttle', () => {
   })
 
   it('exposes `this`', async () => {
-    fn = throttle(function (this: object) {
+    fn = throttle(function (this: unknown) {
       calls.push(this)
     }, 100)
     const receiver = {}
@@ -132,7 +132,7 @@ describe('debounce (throttle with {start: false, middle: false})', () => {
   })
 
   it('exposes `this`', async () => {
-    fn = debounce(function (this: object) {
+    fn = debounce(function (this: unknown) {
       calls.push(this)
     }, 100)
     const receiver = {}