Home Web Front-end JS Tutorial Summarize the differences between href=javascript:void(0) and href=#

Summarize the differences between href=javascript:void(0) and href=#

May 17, 2017 pm 04:02 PM

What are the differences between href=# and href=javascript:void(0)? The following is my summary of the difference between href=javascript:void(0) and href=#.

#"Contains a location information

The default anchor point is #top, which is the top of the web page

And javascript:void(0) only represents a Dead link

This is why sometimes the page is very long and the browsing link is obviously #but jumps to the top of the page

But javascript:void(0) is not like this

So When calling the script, it is best to use void(0)

or onclick>

wait

to open a new Several ways to link windows

1.window.open('url')

2.Use custom function

<script>        function openWin(tag,obj)        {            obj.target="_blank";            obj.href = "Web/Substation/Substation.aspx?stationno="+tag;            obj.click();        }        </script>
<a  href="javascript:void(0)" onclick="openWin(3,this)">LINK_TEST</a>
window.location.href=""
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If it is a #, it will jump to the top. Several personal favorites Solution:

1:<a href="####"></a>
2:<a href="javascript:void(0)"></a>
3:<a href="javascript:void(
null
)"></a>
4:<a href="#" onclick="
return
 false"></a>
5:<span style="cursor:hand"></span>(好像在FF中不能显示)
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Use with caution JavaScript:void(0)

void in JavaScript is a operator, which specifies to evaluate an expressionbut does not return a value
void. The operator usage format is as follows:

1. javascript:void (expression)
2. javascript:void expression
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expression is a JavaScript standard expression to be evaluated. The parentheses outside the expression are optional, but it is a good habit to write them. The void operator specifies a hyperlink. The expression is evaluated but nothing is loaded into the current document. The code above creates a hyperlink and nothing happens when the user clicks the link. (0) is calculated as 0, but has no effect on JavaScript

<a href="javascript:void(0)">单击此处什么也不会发生</a>
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That is to say, if you want to perform some processing without refreshing the page as a whole, you can use void(0). , but when you need to refresh the page, you need to be careful.

In fact, we can use , this sentence will perform a submit operation. So under what circumstances are void(0) used more often? Without refresh, of course it is Ajax. If you look at the Ajax web page, you will generally see a lot of void(0). ,:), so before using void(0), it is best to think about whether the page needs to be refreshed as a whole.

【Related Recommendations】

1. Special Recommendation:"php Programmer Toolbox" V0.1 version Download

2. Solution to the invalid method of javascript:void(0) under ie6

3. Javascript Definition and detailed explanation of operator void(0)

4. Use javascript:void(0) with caution, why is it not good to write like this

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