一个javascript面试题

Question

实现函数LazyMan，使得：LazyMan('Hank'); 输出Hi Hank!LazyMan('Hank').eat('dinner');输出Hi Hank!Eat dinner!LazyMan('Hank').sleep(5).eat('dinner'); 输出：Hi Hank!//等待五秒Eat dinner!LazyMan('Hank').sleepFirst(5).eat('dinner');输出：//等待五秒Hi Hank!Eat dinner!