Bookmarklet implements starting jQuery (imitating cloud input method)_jquery

The bookmark is originally used to collect the URL (http://momo.site.com/), but in fact the bookmark can also collect the javascript code
Just replace the address url in the bookmark with the javascript code.

Copy code The code is as follows:

javascript:your_javascript_expression

The above javascript: can be considered as a javascript protocol, just like http: is an http protocol.
The following is the address to start the jQuery bookmark:

Copy the code The code is as follows:

javascript :(
function(jquery_node){
var disable = function(src_node) {
src_node.parentNode.removeChild(src_node);
jQuery.noConflict(1);
};
var enable = function(d,j){
j=d.createElement('script');
j.id='jquery_src_code';
j.src='http://ajax. googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js';
d.getElementsByTagName('head')[0].appendChild(j);
};
! !jquery_node ? disable(jquery_node)
: enable(document);
})(document.getElementById('jquery_src_code'))

In order to allow users to collect it on the web page, you Need to put it into an link.
For example:

Copy code The code is as follows:

Start jQuery

The whole code is:

Copy code The code is as follows:

href="
javascript:(
function(jquery_node){
var disable = function(src_node) {
src_node.parentNode.removeChild(src_node);
jQuery.noConflict (1);
};
var enable = function(d,j){
j=d.createElement('script');
j.id='jquery_src_code';
j.src='http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js';
d.getElementsByTagName('head')[0].appendChild(j );
};
!!jquery_node ? disable(jquery_node)
: enable(document);
})(document.getElementById('jquery_src_code'))">
< span>Start jQuery

The results are as follows:
Start jQuery
You can bookmark the above (right-click, click "Add this link as Bookmark");
FireBug---" Console, try the charm of jQuery.
jQuery('a');
$('a') may not work because it may be there from the beginning window.$ object (contains other js libraries, or the website defines the $ object itself)
cnblogs website uses the jQuery library.