Chapter 9th Communication APICross-document message transmissionHTML5 provides the ability to receive and send messages to and from Web pages, and not only can communicate with each other on the same source (domain + port number) Web pages, but can
Event Model: JavaScript-relatedThe concept of the event model is the content of the browser, but it is related to JavaScriptDOM Level NO. 0 Event modelThe concept of the event model was introduced in Netscape's Netscape Navigator browser before the
In the daily project, often in the background need to upload pictures and other resource files, before using this component a few times, feel very useful, but every time you use the need to go through a review, so it is better to remember here,
Getting fully formatted HTML by request is convenient, but it also means that you must transfer a lot of HTML tags while transferring text content. Sometimes we want to be able to transmit as little data as possible and then process that data right
I will not paste the code I do now, I directly to the author of the example moved over, because the changes are not small, as long as the modification, can be very good to meet our own needs.
The original address of a fierce click here to download
Part I: SenderThe first step in the program is to create a source in which we will open a window (or IFRAME, if you prefer) to send a message to another new window (for example, we will send a message every 6 seconds, Also create an event listener
Shows which DOM element triggered the event:
The code is as follows
Copy Code
$ ("p, button, H1, H2"). Click (Function (event) {$ ("div"). html ("triggered by a" + Event.target.nodeName + "element.");});
Article Introduction: Although browsers support XHR, there are some differences.
Although browsers support XHR, there are some differences.
1 Timeout settingIE8 adds a timeout attribute to the XHR object, indicating how many
INDEXEDDB is an important part of Html5-webstorage and is a lightweight NoSQL database. More efficient than Web SQL (SQLite), including indexing, transactional processing, and robust query functionality. INDEXEDDB Features:
A Web site may
I recently read the book "javascript advanced program" and write my own experiences with caution. I hope you can get some guidance and discussion from the ox. Step into today's question: javascript event processing functions, we know that the
The interaction between JavaScript and HTML is implemented through events.I. Flow of eventsFirst, we need to understand the concept of event flow . When we click on a button, we also click on the container element of the button, and even click the
Uncle Bob proposed and carried forward the Five Principles S.O.L. I. D to better implement object-oriented programming.
Uncle Bob proposed and carried forward the Five Principles S.O.L. I. D to better implement object-oriented programming. The five
Use ajax to operate JavaScript objects, ajaxjavascript
Although it is convenient to obtain fully formatted HTML through a request, it also means that many HTML tags must be transmitted while the text content is transmitted. Sometimes we want to
1.activity Jump: By adding a Windowdialog object to the page, the SRC attribute binds to the open page. The open operation is performed through the Windowdialog object's open () method. Jump to the sub-page can be This.owner () to get the main page
In HTML5 specifications, my favorite Web technology is the rapidly becoming popular WebSocket API. WebSocket provides a popular technology to replace the Ajax technology we have been using over the past few years. This new API provides a method to
You need to refer to some code on the Internet to create an image capturing tool, and finally encapsulate it into a jquery plug-in. In addition to jquery, this plug-in also references the UI library, including ui. draggable. js.
The ImageCropper
off()function is used to remove an event handler for one or more events bound by an element .off()Functions are primarily used to unbind event handlers that are bound by the on () function.The function belongs to an jQuery object
What I never imagined was that the method mentioned in the JavaScript Advanced Programming (3rd Edition) was outdated. Later I looked at the MDN before I found the latest method.
Simulating mouse eventsThe MDN has been made very clear, although
I. Native JavaScript event handlers example Click Point I link to Baidu home point I link to Baidu home --> DOM Level 0 Specifies the event handler, which is considered an element of the method (run in the
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