Talking about the difference of href= #与href =javascript:void (0) _ Experience Exchange

# "contains a location information

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

and javascript:void (0) only represents a dead link

This is why sometimes the page is very long to browse the link obviously is the # but beat to the top of the page

and javascript:void (0) is not so

So the best time to invoke a script is void (0)

or <input onclick>.

<div onclick>, etc.

Several ways to open a new window link

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 #, there will be jumps to the top of the situation, the personal collection of several solutions:
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> (as if not shown in FF)

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Careful use of javascript:void (0)

In JavaScript, Void is an operator that specifies that you want to evaluate an expression but not return a value.
void operator usage format is as follows:
1. javascript:void (expression)
2. Javascript:void expression
Expression is an expression of the JavaScript standard to compute. The parentheses outside the expression are optional, but writing is a good habit. We can use the void operator to specify a hyperlink. The expression is evaluated but does not load any content in the current document. Surface code creates a hyperlink that will not happen when the user clicks on it. When the user clicks on the link, void (0) evaluates to 0, but there is no effect on JavaScript.

<a href= "javascript:void (0)" > Click here Nothing will happen </a>

That is, you can use void (0) to perform some processing, but not to refresh the page as a whole, but be careful when you need to refresh the page.

In fact we can use <a href= "Javascript:void (Document.form.submit ())", this sentence will be a submit operation. What is the case with void (0) More? No refresh, of course, Ajax, look at the AJAX Web page, you will generally see a lot of void (0),: So in the use of void (0) before, it is best to think about whether the page needs to be overall refreshed.