[英]Preventdefault not working
Hey guys am new to javascript web development.I have been through preventDefault()
through my code.But when i used it it returns the error ..My code 大家好,我是javascript网络开发的新手。我已经通过代码访问了
preventDefault()
。但是当我使用它时,它返回错误..我的代码
<html>
<body>
function preventDef(event) {
event.preventDefault();
}
document.querySelector('a').addEventListener("click",
preventDef(event),false);
</script>
<a href="www.google.com">click here</a>
</body>
</html>
When i use this code and clicked on the link it redirects me to google.com ..what i need is the event must be blocked my preventDefault()
function.. 当我使用此代码并单击链接时,它会将我重定向到google.com。我需要的是,该事件必须被我的
preventDefault()
函数阻止。
Hope you guys can help me out ..Thanks 希望你们能帮助我..谢谢
You are calling the preventDef
function instead of passing it by reference. 您正在调用
preventDef
函数,而不是通过引用传递它。
document.querySelector('a').addEventListener("click", preventDef, false);
// ^^^ don't call the function
EDIT: Another issue is that you are running this before the DOM is ready. 编辑:另一个问题是您在DOM准备就绪之前正在运行此程序。 You need to move the
<script>
tag down to be after the <a>
. 您需要将
<script>
标记向下移动到<a>
。
<html>
<body>
<a href="www.google.com">click here</a>
<script>
// ^^ did you miss an opening script?
function preventDef(event) {
event.preventDefault();
}
document.querySelector('a').addEventListener("click", preventDef, false);
// ^^^ don't call the function
</script>
</body>
</html>
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