-
Notifications
You must be signed in to change notification settings - Fork 0
/
17-2-1.html
32 lines (32 loc) · 874 Bytes
/
17-2-1.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<button onclick="heyClick(event)">Hello</button>
<script>
const btn = document.querySelector('button');
function heyClick(evt){
console.log('1');
}
//將蓋掉原本的onclick function
btn.onclick = function(){
console.log('2');
};
//多綁一個Listener
btn.addEventListener('click', function(){
console.log('3');
});
btn.addEventListener('click', function(){
console.log('5');
});
const listener = (event)=>{
console.log(event);
};
btn.addEventListener('click', listener);
</script>
</body>
</html>