Javascript:void (0) What is the meaning of the example introduction _javascript tips

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 on the outer side of the expression are optional, but it is a good habit to write. (Implementation version Navigator 3.0)

You specify the hyperlink using the void operator. The expression is evaluated but no content is loaded at the current document.

The following code creates a hyperlink that will not happen after the user. When the user links, void (0) evaluates to 0, but there is no effect on Javascript:

<a href= "javascript:void (0)" > single here Nothing's going to happen </A>

The following code creates a hyperlink that submits the form when the user orders:

<a href= "Javascript:void (Document.form.submit ())" > single here submit the form </A>

A href= #与 a href=javascript:void (0) of the different links of several ways:
#包含了一个位置信息
The default anchor is #top, the upper end of the Web page.
and javascript:void (0) only represents a dead link
This is why sometimes the page is very long browsing links is clearly
It beats to the top of the page

and javascript:void (0) is not so

So it's best to invoke a script
void (0)
Or
<input onclick>
<div onclick>, etc.

Several ways to link

1.window.open (' url ')
2. Use Custom function

Copy Code code as follows:

<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)" > Zhuzhou </a>

Window.location.href= ""