Javascript 如何通过javascript更改按钮点击时<a>标签的href
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How to change href of <a> tag on button click through javascript
提问by Chauhan
How to change the hrefattribute value of an <a/>tag through Javascript on button click ?
如何在按钮单击时通过 Javascript更改标签的href属性值<a/>？
<script type="text/javascript">
function f1()
{
document.getElementById("abc").href="xyz.php";
}
</script>
<a href="" id="abc">jhg</a>
<a href="" id="" onclick="f1()">jhhghj</a>
回答by Nick Craver
Without having a href, the click will reload the current page, so you need something like this:
没有href，点击将重新加载当前页面，所以你需要这样的东西：
<a href="#" onclick="f1()">jhhghj</a>
Or prevent the scroll like this:
或者像这样防止滚动：
<a href="#" onclick="f1(); return false;">jhhghj</a>
Or return falsein your f1function and:
或者return false在你的f1函数中：
<a href="#" onclick="return f1();">jhhghj</a>
....or, the unobtrusive way:
....或者，不显眼的方式：
<a href="#" id="abc">jhg</a>
<a href="#" id="myLink">jhhghj</a>
<script type="text/javascript">
document.getElementById("myLink").onclick = function() {
document.getElementById("abc").href="xyz.php";
return false;
};
</script>
回答by jakobhans
Exactly what Nick Carver did there but I think it would be best if used the DOM setAttribute method.
正是 Nick Carver 在那里所做的，但我认为最好使用 DOM setAttribute 方法。
<script type="text/javascript">
document.getElementById("myLink").onclick = function() {
var link = document.getElementById("abc");
link.setAttribute("href", "xyz.php");
return false;
}
</script>
It's one extra line of code but find it better structure-wise.
这是额外的一行代码，但发现它在结构上更好。
回答by atlavis
remove hrefattribute:
移除href属性：
<a id="" onclick="f1()">jhhghj</a>
if link styles are important then:
如果链接样式很重要，那么：
<a href="javascript:void(f1())">jhhghj</a>
回答by Mohsen Abasi
To have a link dynamically change on clicking it:
要在单击时动态更改链接：
<input type="text" id="emailOfBookCustomer" style="direction:RTL;"></input>
<a
onclick="this.href='<%= request.getContextPath() %>/Jahanpay/forwardTo.jsp?handle=<%= handle %>&Email=' + document.getElementById('emailOfBookCustomer').value;" href=''>
A dynamic link
</a>
回答by user3325593
<a href="#" id="a" onclick="ChangeHref()">1.Change 2.Go</a>
<script>
function ChangeHref(){
document.getElementById("a").setAttribute("onclick", "location.href='http://religiasatanista.ro'");
}
</script>
回答by Arindam Roychowdhury
Here's my take on it. I needed to create a URL by collecting the value from a text box , when the user presses a Submit button.
这是我的看法。当用户按下提交按钮时，我需要通过从文本框中收集值来创建 URL。
<html>
<body>
Hi everyone
<p id="result"></p>
<textarea cols="40" id="SearchText" rows="2"></textarea>
<button onclick="myFunction()" type="button">Submit!</button>
<script>
function myFunction() {
var result = document.getElementById("SearchText").value;
document.getElementById("result").innerHTML = result;
document.getElementById("abc").href="http://arindam31.pythonanywhere.com/hello/" + result;
}
</script>
<a href="#" id="abc">abc</a>
</body>
<html>回答by 4u.Ans
I know its bit old post. Still, it might help some one.
我知道它有点旧的帖子。不过，它可能对某些人有所帮助。
Instead of tag,if possible you can this as well.
而不是标记，如果可能的话，你也可以这样做。
<script type="text/javascript">
function IsItWorking() {
// Do your stuff here ...
alert("YES, It Works...!!!");
}
</script>
`<asp:HyperLinkID="Link1"NavigateUrl="javascript:IsItWorking();"` `runat="server">IsItWorking?</asp:HyperLink>`
Any comments on this?
对此有何评论？
