Both apply and call exist to change the context in which a function is run (just tochange the direction of this inside the functionIf you use the Apply or call method, then this points to their first argument, and the second parameter of apply is an
1. Binding Events$ (' Gets the Label object '). Bind (' The method to be manipulated, {The contents of the operation are in the form of a dictionary},function () {} ')Grammar:Bind (TYPE,DATA,FN)Description: Binds an event handler function for each
The 18th Chapter Advanced Technique
1. Advanced function
1.1 Constructor for scope security
① calls a constructor directly without applying the new operator, it maps to the Global object window because of the late binding of the This object, causing
In JavaScript, call, apply, and bind are the three methods of a function object, and this article will understand three methods in more detail with the application of several scenarios.
Call ()
The call () method invokes a function or method under
This series includes two articles, which describe in detail nine ways of user space and kernel spatial data exchange under Linux system, including kernel startup parameters, module parameters and Sysfs, Sysctl, System calls, NetLink, Procfs,
This in Javascript is a completely different mechanism from other languages and is likely to confuse some engineers who write other languages.
1. Mistakenly think this point to the function itself
According to the English grammar of this, it is
Fragment (fragmentation) can be flexible to add or remove Fragment from an active activity and have a good user experience;
Here is the specific design of the fragment:
1. Create a new_item_fragment resource file:
Location: Res->new_item_fragment.
Brief summary: Apply (): Call the function as a method of the specified object, passed to it is the specified argument array--function.apply (thisobj, args) or function.apply (thisobj, args) Bind (): main function: Bind a function to an object,
Address: http://blog.csdn.net/matrix_laboratory/article/details/136692112. Socket ()[CPP]View Plaincopy
"font-size:14px" >int socket (int domain, int type, int protocol);
The socket () opens a network communication port and,
A simple example of a Linux Java program communicating with a C language program through a socketthis morning, I experimented with a Java program communicating with a C language program through a socket. Because did not learn Java, so just write the
Yesterday colleagues let help write a small function, only found Cocos2d-x 3.0 and cocos2d-x 3.0rc0 difference is quite big.Find the label of this control, 3.0 more than the RC0 version of a creation function, more critical is that the label anchor
implementation of UDP programming in MFCCategory: 2013-06-06 12:16 2592 people reading reviews (0) favorite reports Udpsocket1. Programming principleUDP is a non-connected communication protocol that is much simpler than the TCP protocol. The
First, the classification and characteristics of equipment1. Character devicesA character device is a data-oriented device that does not have a request buffer, and access to the device can only be accessed sequentially by byte, not randomly.Most of
This article mainly introduces the self encapsulated JavaScript event queue function version, compatible with most browsers, the need for friends can refer to the
Background
There are several minor problems with AddEventListener () or attachevent
the implementation of the bind () methodIn JavaScript, a method often involves a context, that is, this, and therefore often cannot be referenced directly. Take the most common console.log ("info ..."), avoid writing lengthy console, directly with
function is a class template that overloads the operator () function call operator , so that the object of each function class is a function object.We can use the function template like this:#include #includestring>#include#includeusing
Often can see the title inside the message hint, the following is a JS implementation method, the need for friends can refer to the next
Mainly through the SetTimeout method to set a timer, switch message prompts, so as to achieve the title to the
Add or remove events in IE browser with attachevent, DetachEvent. AddEventListener, RemoveEventListener are used in other standard browsers. The following additions and deletions to the event are encapsulated. Look directly at the code! /** *
jquery Pop pop-up layer dropdown effect implementationNote: At the end of this article, you can download a jquery file.
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