为什么我把 this.onclick=' '; 放在 function 运行一次？

Question

<a href="#" onclick="addP(); this.onclick='';">See more</a>    

Why does the function run once when I put this.onclick=' ';?

Answer 1

When you clicked the link.

1. It calls addP .
2. It removes onclick handler.

Now the actual HTML looks like

<a href="#" onclick="addP();">See more</a> 

To fix this remove onclick='' part in the onclick attribute.

 let addP = () => alert('you clicked the link')

 <a href="#" onclick="addP();">See more</a>

Answer 2

I think it's overriding the native method:)

Answer 3

You have to remove this.onclick=''; because when the o'clock event ( addP ) Is over, it removes the the click event handler. So there are 2 methods for you:

---

Method 1
use javascript & html like so:

HTML:

<a href="#" id="seeMore">See more</a>    

Javascript:

document.getElementById('seeMore').addEventListener('click', function() {
    addP();
});

---

---

Method 2
only using html

<a href="#" onclick="addP();">See more</a>    

---