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Describe How Browsers Use Prop-Types-Parents And Components

Decent Essays

• Describe how browsers use plug-ins. See page 295. (1 point)

A plug-in is a program written by an application interface that follows a certain specification. A lot of software has plug-ins, and there are hundreds of them. For example, in IE, when you install the relevant plug-ins, the WEB browser can invoke the plug-in directly to handle certain types of files.Flash plugins, RealPlayer plug-ins, MMS plug-ins, MIDI 5 line, ActiveX plug-ins, etc. For example, Winamp's DFX is also a plug-in. There are many other plug-ins that are new to developers.

2. Explain why cookies are useful in an environment that is based on a stateless protocol, and provide some concrete examples of their use. See page 296 (2 points)

Cookies are the …show more content…

While the Session is created, the server generates the unique Session id for the Session, and the Session id is used to retrieve the created Session in the subsequent request. After the Session is created, the Session correlation method can be called to add content to the Session, which will only be saved in the server, and only the Session id will be sent to the client; When the client sends a request again, will this Session id, after the server receives the request will be based on the Session id to find the corresponding Session, and used again. Formally, the user's state is maintained.

3. Describe the advantages and disadvantages of type of Web page development tool discussed in this chapter. See pages 297. (2 points)

Web Tool Advantages Disadvantages asp Can quickly complete site application No debug mechanisms php A good security Unable to realize commercialization application development.
Asp.net Language is flexible, and support the object-oriented features of complex. Database connection complex. jsp Strong scalability. A lack of systematic data.

4. Create a short tutorial explaining how to create, test, and post a Web page using a text editor such as Notepad or TextEdit. See page 299. (1 point)

Web page editing software provides a menu option, it can be released automatically HTML document and related document.Web page editing software provides a menu option, it can be released automatically HTML document and related document.

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