JavaScript 阻止事件的默认行为
1、右键点击
document.oncontextmenu = function(){
return false;
}
2、a链接默认行为
<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script>
window.onload = function() {
var aLink = document.getElementById('a1');
/* aLink.onclick = function() {
return false;
} */
aLink.onclick = function(ev) {
var e = ev || window.event;
preDefault(e);
console.log('asdf');
}
// e.preventDefault; 阻止默认行为，可以放在任何地方 W3C
// window.event.returnValue = false; 兼容ie浏览器
function preDefault(e) {
if (e.preventDefault) {
e.preventDefault();
} else {
window.event.returnValue = false;
}
}
}
</script>
</head>
<body>
<a href="https://www.baidu.com">百度</a>
</body>
</html>