In JS a tag add click event Mask href jump page _javascript tips

We often have click events in the A tab:

1.

A href= "Javascript:js_method ();"

This is a common approach on our platform, but this approach can easily go wrong when passing this parameter, and javascript: The protocol as the HREF attribute of a will not only lead to unnecessary triggering of window.onbeforeunload events, but will also stop the animated GIF pictures in IE. The standard of the consortium does not recommend JavaScript statements to be executed in href

2.

A href= "javascript:void (0);" onclick= "Js_method ()"

This method is a lot of web site most commonly used method, is also the most comprehensive method, the OnClick method is responsible for the implementation of JS function, and void is an operator, void (0) return undefined, address does not occur jump. Moreover, this method does not expose the JS method directly to the status bar of the browser as in the first method.

3.

A href= "javascript:;" onclick= "Js_method ()"

This method is similar to 2 kinds, the difference is only the execution of an empty JS code.

4.

A href= "#" onclick= "Js_method ()"

This method is also a very common online code, #是标签内置的一个方法, representing the role of top. So in this way, click on the Back page and return to the top of the page.

5.

A href= "#" onclick= "Js_method (); return false;"

This method clicks on the implementation of the JS function return false, the page does not occur jump, after execution or in the current position of the page.

I looked at the Taobao's homepage, they adopted the 2nd method, and the Alibaba homepage is the 1th method, and our difference is that each of the JavaScript methods in href is surrounded by try and catch.

To synthesize the above, the most appropriate method of calling the JS function in a is recommended:

A href= "javascript:void (0);" onclick= "Js_method ()"
a href= "javascript:;" onclick= "Js_method ()"
a href= "#" Onclick= "Js_method (); return false;"

Explain:

javascript: is a pseudo protocol that indicates that the content of the URL is executed through JavaScript. void (0) means that no action is made, which prevents the link from jumping to another page. This is often done to preserve the style of the link, but does not allow the link to perform the actual operation, the specific operation to the linked OnClick event processing.

The above is a small set to introduce in JS a tag add click event Mask href jump page, I hope to help you, if you have any questions please give me a message, small series will promptly reply to everyone. Here also thank you very much for the cloud Habitat Community website support!