fix: next-tick iife

src/function/next-tick.ts

@@ -3,34 +3,26 @@ import { ensureCallable } from '../debug';
 
 import type { AnyFn } from '../type';
 
-function _nextTick(): (callback: Function, ...args: any[]) => void {
+/**
+ * 延迟执行
+ * event loop
+ * @category Function
+ */
+function nextTick(callback: Function, ...args: any[]) {
   // nodejs
   if (isFunction(typeof process === 'object' && process && process.nextTick)) {
-    return process.nextTick;
+    return process.nextTick(ensureCallable<AnyFn>(callback), ...args);
   }
 
-  if (isFunction(typeof queueMicrotask == 'function' && queueMicrotask)) {
-    return function (cb) {
-      queueMicrotask(ensureCallable(cb));
-    };
+  if (typeof queueMicrotask == 'function') {
+    return queueMicrotask(ensureCallable<AnyFn>(callback));
   }
 
-  if (isFunction(typeof setImmediate === 'function' && setImmediate)) {
-    return function (cb, ...args) {
-      setImmediate(ensureCallable<AnyFn>(cb), ...args);
-    };
+  if (typeof setImmediate === 'function') {
+    return setImmediate(ensureCallable<AnyFn>(callback), ...args);
   }
 
-  return function (cb, ...args) {
-    setTimeout(ensureCallable(cb), 0, ...args);
-  };
+  return setTimeout(ensureCallable<AnyFn>(callback), 0, ...args);
 }
 
-/**
- * 延迟执行
- * event loop
- * @category Function
- */
-const nextTick = _nextTick();
-
 export default nextTick;