From 21e90a0c7d6efce32e2fa5ef4152082ef8e7cae9 Mon Sep 17 00:00:00 2001
From: Yanzhen Yu <yanzhen@smartx.com>
Date: Wed, 1 Apr 2026 12:00:00 +0800
Subject: [PATCH] hotfix throttle function args

---
 package.json       | 2 +-
 src/utils.ts       | 3 ++-
 typings/utils.d.ts | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/package.json b/package.json
index 8c07f542..5c6c3a7f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rrweb",
-  "version": "0.7.20",
+  "version": "0.7.21",
   "description": "record and replay the web",
   "scripts": {
     "test": "npm run bundle:browser && cross-env TS_NODE_CACHE=false TS_NODE_FILES=true mocha -r ts-node/register test/**/*.test.ts",
diff --git a/src/utils.ts b/src/utils.ts
index fa96524e..2ee32c2f 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -53,13 +53,14 @@ export function throttle<T>(
   let timeout: number | null = null;
   let previous = 0;
   // tslint:disable-next-line: only-arrow-functions
-  return function(args: T) {
+  return function(arg: T) {
     let now = Date.now();
     if (!previous && options.leading === false) {
       previous = now;
     }
     let remaining = wait - (now - previous);
     let context = this;
+    let args = arguments;
     if (remaining <= 0 || remaining > wait) {
       if (timeout) {
         window.clearTimeout(timeout);
diff --git a/typings/utils.d.ts b/typings/utils.d.ts
index 4d176dc2..732c10a9 100644
--- a/typings/utils.d.ts
+++ b/typings/utils.d.ts
@@ -2,7 +2,7 @@ import { Mirror, throttleOptions, listenerHandler, hookResetter, blockClass } fr
 import { INode } from 'rrweb-snapshot';
 export declare function on(type: string, fn: EventListenerOrEventListenerObject, target?: Document | Window): listenerHandler;
 export declare const mirror: Mirror;
-export declare function throttle<T>(func: (arg: T) => void, wait: number, options?: throttleOptions): (args: T) => void;
+export declare function throttle<T>(func: (arg: T) => void, wait: number, options?: throttleOptions): () => void;
 export declare function hookSetter<T>(target: T, key: string | number | symbol, d: PropertyDescriptor, isRevoked?: boolean): hookResetter;
 export declare function getWindowHeight(): number;
 export declare function getWindowWidth(): number;