Hello teacher, first of all, thank you to all the teachers of php Chinese website. I have two small questions
1. Why is aa() called at the end {}
2. Why tenx. innerHTML=m To unload the external part of {}
3. Why should aa be written at the end
你想拥有你从未有过的东西 ,那么你必须去做你从未做过的事情。
Question 1: JS functions are useless if not called;
Question 2: This is the number of characters we input. It is not loaded externally, but is placed behind the judgment (look at the code carefully) )
Question 3: Same as question 1 Calling function
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Question 1: JS functions are useless if not called;
Question 2: This is the number of characters we input. It is not loaded externally, but is placed behind the judgment (look at the code carefully) )
Question 3: Same as question 1 Calling function