In general we want to have a tag click to execute JavaScript code, there are the following ways:
mode one: <a href= "#" onclick= "alert (1);" > Click a </a>
The disadvantage of this approach is that after clicking the URL in the Address bar, add the # number, while moving the page to the top, generally do not recommend use.
mode two: <a href= "javascript:void (0);" onclick= "alert (1);" > Click a </a>
This way avoids the disadvantage of the way one, after clicking on the page without any effect. But there is a fatal drawback is that under the IE6 cannot execute the form object's submit () method, also cannot execute the jump statement, for example
<a href= "javascript:void (0);" onclick= "document.forms[0].submit ();" > Click a </a>
<a href= "javascript:void (0);" onclick= "window.location.href= ' http://www.google.com ';" > Click a </a>
In the IE6 under the invalid, replaced by href= "#" can be in the IE6 under normal execution.
Mode III: <a href= "###" onclick= "alert (1);" > Click a </a>
Click on the Address bar after the URL added three #, but will not affect the scroll bar, at the same time under the IE6 can also execute the form object of the Submit () method and jump statement, is a more eclectic approach.
Conclusion: I personally think that if you need to submit a form or jump page in the JavaScript method you execute, use mode three, and all other cases will be two.
Another: This comes with another problem, typically reloading the current page with the following JavaScript code:
Window.location.href = window.location.href;
However, when the URL address contains #, the above code is invalid, so you need to use the following code:
Window.location.href = Window.location.href.split (' # ') [0];
Separate the URL address with the # symbol and take the first part.
In many cases/index.htm#desc, the following desc may be parameters, not easy to display different content, not simple anchor points, but Ajax read content.
