How to open the Javascript control page link in a new window

The first method is implemented using jquery. The principle is to first find the external link in the site and add the target = _ blank attribute to the link. The Code is as follows:
Jquery opens in a new window
 Copy codeThe Code is as follows:
$ ("A [href * = 'HTTP: // ']: not ([href * ='" + location. hostname + "']), [href * = 'https: //']: not ([href * = '" + location. hostname + "'])")
. AddClass ("external ")
. Attr ("target", "_ blank ");

Js opens in a new window
 Copy codeThe Code is as follows:
Var aTag = document. getElementsByTagName ('A ');
For (I in aTag ){
Atagpoliciunc.tar get = '_ blank ';
}

Html Method
Add
The Code is as follows: copy the Code <base target = '_ blank'/>
You can open all pages in a new window.