Community Learn Tools Library Leisure
search
English
Home > Web Front-end > JS Tutorial > jquery 1.4.2 released! Mainly performance and API_jquery

jquery 1.4.2 released! Mainly performance and API_jquery

WBOY
Release： 2016-05-16 18:33:49
Original
986 people have browsed it

Performance: See the picture below


Jquery 1.42 latest version framework download
You can also introduce it directly into the web page:
http://ajax.googleapis.com/ajax/libs/ jquery/1.4.2/jquery.min.js
http://ajax.microsoft.com/ajax/jQuery/jquery-1.4.2.min.js
New method:
.delegate( selector, eventType, handler )
This function is indeed very useful. Used to attach an event listener to the specified object.

selector: selector

eventType: event type

handler: listening function

Delegate This method is used to replace .live( in 1.3.2 )method. This method is more convenient than live, and can also achieve the function of dynamically adding events.

Look at the following example: bind hover events to each td of the table
The previous writing was as follows:

Copy code The code is as follows:

$("table").each(function(){
$("td", this).live("hover", function( ){
$(this).toggleClass("hover");
});
});

Now just do this:
Copy code The code is as follows:

$("table").delegate("td", "hover", function() {
$(this).toggleClass("hover");
});

One line of code to do it

Of course, since there is .delegate(), there is also. unelegate(), used to unbind events
Related labels：
api jquery performance
source：php.cn
Previous article：jquery is the simplest and easiest to use form validation plug-in_jquery Next article：Introduction to QUnit, a javascript unit testing tool created by the JQuery team_jquery
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
Submit form without button using Javascript/Jquery I'm trying to submit a form without a button by calling a JavaScript function and executin...
From 2024-04-06 14:54:03
0
2
421
How to retrieve values ​​of unselected rows in HTML data table using jquery I'm trying to get the value of all rows where the button was not clicked. For example, whe...
From 2024-04-05 09:26:49
0
1
1418
Need a jquery script to move selected options from a select box based on the end user's current selection I have an HTML page where the end user can rank our items via a select box element. See th...
From 2024-04-04 18:40:04
0
1
3528
I've created an element in pure CSS via bookmarks. It is created but not visible My code is as follows: g=document.createElement('div');g.setAttribute("id","...
From 2024-04-04 17:27:27
0
1
417
Unable to send form data on Safari/Firefox iOS This works on all platforms except Safari/Firefox on iOS: jQuery("#gform_1").one...
From 2024-04-04 12:53:48
0
1
303
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template