Html:
Javascript:
Some notes:
Bind (TYPE,[DATA],FN) Bind event handlers for specific events for each matching element
$ ("a"). Bind ("click", Function () {alert ("OK");}); Live (TYPE,[DATA],FN) attaches an event handler function to all matching elements, even if the element is added later
$ ("a"). Live ("Click", Function () {alert ("OK");}); Delegate (SELECTOR,[TYPE],[DATA],FN
The JavaScript engine is a single-threaded procedure that performs synchronous operations down sequentially and executes an asynchronous operation using the event loop model.When the JS engine thread encounters an asynchronous operation, it gives the asynchronous operation to the corresponding observer,Asynchronous operations include:Dom Event Click,mousedown, etc.Timer Settimeout,setintervalIO network io,
@protocol learndelegate @endDefines a class of students that are used to implement the above protocol: //student.h #import @protocol Studydelegate, learndelegate; @interface Student:nsobject @end Student.m#import"Student.h"#import"StudyDelegate.h " #import " LearnDelegate.h " @implementation Student @endDetermines whether an object of type student implements the protocol:#import#import "Student.h"@protocolstudydelegate;intMainintargcConst Char*argv[]) {@autoreleasepool {Student*stu =[
");http.createServer(function(request, response){ console.log("Request received."); response.writeHead(200, {"Content-Type": "text/plain"}); response.write("Hello World"); response.end();}).listen(8888);console.log("Server has started.");Note: In the place where the anonymous callback function was triggered, we output a text with Console.log, and after the HTTP server has started working, it also outputs a text.When we run node server.js as usual, it will output "server has started." On the comm
For cases where only one trigger is required and then immediately unbound,jQuery provides a wayfor one(), which has the same syntax structure as bind . Trigger ("click") can be simplified into click (). Trigger can also trigger events with custom names. For example, bind a custom Myclick event to an element with bind ("Myclick", function () {}) , and then use the trigger ( "Myclick") to trigger the event.
the background. Basically, all listener event objects (all instances of Eventemitter) support asynchronous interaction events, and you can interact with blocking code in this way, such as using files,sockets or sub-processes, which are eventemitters in node. js. [Multi-core] [8] This method can also be used, see: Node-http-proxyInternal implementationInternally, node. JS relies on Libev to implement the event
I wrote a lot of code, but almost never wrote code for the Delegate/event/thread parameter passing application.Therefore, it is easy to understand and forget.Today I reviewed it again.Therefore, write down the code in the simplest way to help you understand it.
1. Passing parameters by thread [several simple lines of code]1 static void main (string [] ARGs)
2 {
3 if (threadpool. queueuserworkitem (New waitcallback (program. writepara), "this is the pa
Today, there is a CSDN community event to answer questions about learning, understanding, and development of Android systems, and to understand the fundamentals of the Android Framework with an in-depth understanding of Android:wi-fi, NFC and GPS volumes. Activity Link: http://bbs.csdn.net/topics/390765275?page=1#post-397228045This
If you are not familiar with event events, it is recommended to read my previous text javascript: Understanding DOM events. Or look directly below the worker API.First, we need to instantiate a worker object, and the browser will open a new interface based on the newly created Worker object, which will handle the communication between the client and the INDEXEDDB database. The database here refers to the br
If you are not familiar with event events, it is recommended to read my previous text javascript: Understanding DOM events. Or look directly below the worker API.First, we need to instantiate a worker object, and the browser will open a new interface based on the newly created Worker object, which will handle the communication between the client and the INDEXEDDB database. The database here refers to the br
triggered after a successful match
Acquirerequeststate,postacquirerequeststate
Asp. NET successively triggers these two events so that the state management module gets the corresponding state based on the current request, such as sessionstate
Prerequesthandlerexecute,postrequesthandlerexecute
Asp. NET finally through a request resource type corresponds to the HttpHandler implementation of the request processing, before and after the implementation of HttpHa
) {super.paintcomponent (g); G.drawoval (GetWidth ()/2-radius, getheight ()/2-r adius,2 * radius, 2 * radius);}} Class Enlargelistener implements ActionListener {//First step: Create Enlargelistener Class Implementation ActionListener interface// Fifth step: In order for actionperformed to access the Enlarge method, define the class as Inner class@overridepublic void actionperformed (ActionEvent e) {// Fourth step: Overwrite the Actionperformed method in the interface once the operation is monit
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