asynchronous javascript example

JQuery ztree asynchronous loading example, jqueryztree To do a file directory browsing interface, you need to traverse all the files and directories. It is obviously time-consuming and labor-consuming to read files and directories at a time. Therefore, we need to doAsynchronous loading.... Preparations: 1 download JQuery ZTree Copy the JS and CSS in it. In fact, there is no need to introduce so much. You ca

Example 1: jquery + ajax/"target =" _ blank "> jquery ajax synchronization modeCopy codeThe Code is as follows:$. Ajax ({Url: 'test. php ',Type: 'post ',Async: false, // synchronous mode. true indicates asynchronous mode.Data: {'ac': 'addvideo', 'videoname': videoname}, // json object is used hereSuccess: function (data ){// Code here...},Fail: function (){// Code here...}});

Synchronous asynchronous mode for JavaScriptJavaScript's language execution environment is single-threaded. A single thread is one that wants to queue up so that tasks need to be done sequentially. The advantage of this model is that it is simple to implement, but the downside is that if there is a task in the queue that takes a long time, the task behind it must wait until the previous one executes, delaying the execution of the entire program.To opt

Web page interaction becomes more and more complex, and JavaScript asynchronous operations become more and more complex. For example, a common ajax request needs to respond to the operation when the request is complete. The request is usually asynchronous and other operations can be performed by the user during the req

This is the first time I understand the concepts of JavaScript asynchronous, single-threaded, queue, thanks to Async JavaScript.Asynchronous timer function First, from the asynchronous timing function SetTimeout: The code is as follows Copy Code var begin = New Date ()//code Startsettimeout (function () {var end = new Date ();Alert (

Author: APOLink: http://blog.csdn.net/livelylittlefish/article/details/7952884 (I haven't updated it all over the past six months. I have sent several previous Reading Notes .) Content 0. Order 1. Basic synchronization version 2. multi-process version 3. multi-threaded version 4. Summary 0. Order This section uses a simple alarm clock instance to demonstrate asynchronous programming. This program cyclically accepts user input information until an e

PHP itself does not have multiple threads, but it can be curved to create the same effect, such as a multiple-process approach to asynchronous invocation, limited to command mode. There is also a simpler way to use the WEB program, which is to request a URL with Fsockopen (), fputs (), without waiting for a return, if you do something in the requested page (URL) that is asynchronous. The key code is as fol

execution of the program is consistent with the order of the task, synchronized; "Asynchronous mode" is completely different, each task has one or more callback functions (callback), the previous task is finished, Instead of performing the latter task, the callback function is executed, and the latter task is executed at the end of the previous task, so that the sequence of execution of the program is inconsistent and

Ajax|javascript| Request | asynchronous Most WEB applications use the request/response model to obtain complete HTML pages from the server. Often click on a button, wait for the server to respond, and then click another button, and then wait, such a repetitive process. With Ajax and XMLHttpRequest objects, you can use a request/response model that eliminates the need for the user to wait for a response from