in electron, we only patch timers.setTimeout

lib/node/node.ts

@@ -13,7 +13,7 @@ import './events';
 import './fs';
 
 import {patchTimer} from '../common/timers';
-import {findEventTask, patchMacroTask, patchMicroTask} from '../common/utils';
+import {findEventTask, isMix, patchMacroTask, patchMicroTask} from '../common/utils';
 
 const set = 'set';
 const clear = 'clear';
@@ -24,8 +24,11 @@ Zone.__load_patch('node_timers', (global: any, Zone: ZoneType, api: _ZonePrivate
   try {
     const timers = require('timers');
     let globalEqualTimersTimeout = global.setTimeout === timers.setTimeout;
-    if (!globalEqualTimersTimeout) {
-      // if global.setTimeout not equal timers.setTimeout, check
+    if (!globalEqualTimersTimeout && !isMix) {
+      // 1. if isMix, then we are in mix environment such as Electron
+      // we should only patch timers.setTimeout because global.setTimeout
+      // have been patched
+      // 2. if global.setTimeout not equal timers.setTimeout, check
       // whether global.setTimeout use timers.setTimeout or not
       const originSetTimeout = timers.setTimeout;
       timers.setTimeout = function() {
@@ -43,6 +46,12 @@ Zone.__load_patch('node_timers', (global: any, Zone: ZoneType, api: _ZonePrivate
     // timers module not exists, for example, when we using nativescript
     // timers is not available
   }
+  if (isMix) {
+    // if we are in mix environment, such as Electron,
+    // the global.setTimeout has already been patched,
+    // so we just patch timers.setTimeout
+    return;
+  }
   if (!globalUseTimeoutFromTimer) {
     // 1. global setTimeout equals timers setTimeout
     // 2. or global don't use timers setTimeout(maybe some other library patch setTimeout)