diff --git a/lib/index.iife.js b/lib/index.iife.js
index 338f6a1..724e3a8 100644
--- a/lib/index.iife.js
+++ b/lib/index.iife.js
@@ -13,22 +13,6 @@
       VueDemi.Vue = Vue
       VueDemi.Vue2 = Vue
       VueDemi.version = Vue.version
-      VueDemi.set = function(target, key, val) {
-        if (Array.isArray(target)) {
-          target.length = Math.max(target.length, key)
-          target.splice(key, 1, val)
-          return val
-        }
-        Vue.set(target, key, val)
-        return val
-      }
-      VueDemi.del = function(target, key) {
-        if (Array.isArray(target)) {
-          target.splice(key, 1)
-          return
-        }
-        Vue.delete(target, key)
-      }
     }
     else if (Vue.version.slice(0, 2) === '2.') {
       if (VueCompositionAPI) {
diff --git a/lib/v2.7/index.cjs b/lib/v2.7/index.cjs
index 65a81d3..0c9b3b2 100644
--- a/lib/v2.7/index.cjs
+++ b/lib/v2.7/index.cjs
@@ -4,24 +4,6 @@ Object.keys(Vue).forEach(function(key) {
   exports[key] = Vue[key]
 })
 
-exports.set = function(target, key, val) {
-  if (Array.isArray(target)) {
-    target.length = Math.max(target.length, key)
-    target.splice(key, 1, val)
-    return val
-  }
-  Vue.set(target, key, val)
-  return val
-}
-
-exports.del = function(target, key) {
-  if (Array.isArray(target)) {
-    target.splice(key, 1)
-    return
-  }
-  Vue.delete(target, key)
-}
-
 exports.Vue = Vue
 exports.Vue2 = Vue
 exports.isVue2 = true
diff --git a/lib/v2.7/index.mjs b/lib/v2.7/index.mjs
index cbb72ae..6ec1976 100644
--- a/lib/v2.7/index.mjs
+++ b/lib/v2.7/index.mjs
@@ -6,24 +6,6 @@ var Vue2 = Vue
 
 function install() {}
 
-export function set(target, key, val) {
-  if (Array.isArray(target)) {
-    target.length = Math.max(target.length, key)
-    target.splice(key, 1, val)
-    return val
-  }
-  Vue.set(target, key, val)
-  return val
-}
-
-export function del(target, key) {
-  if (Array.isArray(target)) {
-    target.splice(key, 1)
-    return
-  }
-  Vue.delete(target, key)
-}
-
 export * from 'vue'
 export {
   Vue,