巧用装饰器模式：记录函数调用次数，代码示例揭秘！

```javascript function callCounter(func) { let count = 0; return function(...args) { count++; console.log(`called ${count} times`); func(...args); }; } function sayHello(name) { console.log('hello'+ name); } let decoratedSayHello = callCounter(sayHello); decoratedSayHello('John'); decoratedSayHello('Jane'); decoratedSayHello('Doe'); ``` ######[AI写代码神器 | 109点数解答 | 2024-11-08 10:24:08]