From 8178359a080df8c859d01eacda0d75a95329c989 Mon Sep 17 00:00:00 2001
From: pjxxcc <562844621@qq.com>
Date: Thu, 30 Jun 2022 15:43:16 +0800
Subject: [PATCH 1/2] =?UTF-8?q?=E4=BF=AE=E5=A4=8Dthrottle=E9=97=AD?=
 =?UTF-8?q?=E5=8C=85=E5=AF=BC=E8=87=B4=E7=9A=84=E5=86=85=E5=AD=98=E6=B3=84?=
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此throttle函数存储了最后一次触发事件时的参数arguments和context，导致如果后续不再触发此事件，那么上一次触发事件时的dom以及组件都无法被内存回收。

比如在vxe-table中，触发mouse-wheel后表格会被缓存，后面及时销毁了表格，其内存也无法被释放。当然因为mouse-wheel事件是注册在window上的，在空白区域再次滚动鼠标滚轮，内存就会得以释放。
---
 func/throttle.js | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/func/throttle.js b/func/throttle.js
index 5a8cf73d..c0a5e611 100644
--- a/func/throttle.js
+++ b/func/throttle.js
@@ -7,21 +7,20 @@
   * @return {Function}
   */
 function throttle (callback, wait, options) {
-  var args, context
   var opts = options || {}
   var runFlag = false
   var timeout = 0
   var optLeading = 'leading' in opts ? opts.leading : true
   var optTrailing = 'trailing' in opts ? opts.trailing : false
-  var runFn = function () {
+  var runFn = function (args, context) {
     runFlag = true
     callback.apply(context, args)
     timeout = setTimeout(endFn, wait)
   }
-  var endFn = function () {
+  var endFn = function (args, context) {
     timeout = 0
     if (!runFlag && optTrailing === true) {
-      runFn()
+      runFn(args, context)
     }
   }
   var cancelFn = function () {
@@ -37,9 +36,9 @@ function throttle (callback, wait, options) {
     runFlag = false
     if (timeout === 0) {
       if (optLeading === true) {
-        runFn()
+        runFn(args, context)
       } else if (optTrailing === true) {
-        timeout = setTimeout(endFn, wait)
+        timeout = setTimeout(() => endFn(args, context), wait)
       }
     }
   }

From 300819f5fd08a285d54c177452404df99632b2e8 Mon Sep 17 00:00:00 2001
From: pjxxcc <562844621@qq.com>
Date: Mon, 4 Jul 2022 11:40:06 +0800
Subject: [PATCH 2/2] Update throttle.js

---
 func/throttle.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/func/throttle.js b/func/throttle.js
index c0a5e611..c829ccb5 100644
--- a/func/throttle.js
+++ b/func/throttle.js
@@ -31,8 +31,8 @@ function throttle (callback, wait, options) {
     return rest
   }
   var throttled = function () {
-    args = arguments
-    context = this
+    const args = arguments
+    const context = this
     runFlag = false
     if (timeout === 0) {
       if (optLeading === true) {