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| Question has two different answers There is a question on this test that states that "File" is a server-side object. Yet this question state that "File" is not a server side object. Which one is it? I'm guessing the questions on this test are in random order with each page refresh, but the questions that are conflicting are #32 and this one #35: #32: Which of the following are Javascript server-side object? Answer: File #35: File is a server-side Javascript object Answer: False Chris 08-21-2014 11:05 AM |
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Chapter 9. JSON on the Server Side
When we talk about web client–server relationships, we can categorize technologies as client side or server side:
- On the client side, we have HTML, CSS, and JavaScript.
- On the server side, there is PHP, ASP.NET, Node.js, Ruby on Rails, Java, Go, and many, many more.
As a web client, we send requests for resources to a server using HTTP. The server responds with a document, such as HTML or JSON. When that document is a JSON document, the server side code must handle the creation of it.
In addition to serving a JSON document, a server may receive a JSON document. We saw this in Chapter 8 when we used HTTP to post a JSON document to the CouchDB web API. When a document is received, the server-side code must handle the parsing of that document.
In previous chapters, we discussed how JavaScript can make behind-the-scenes HTTP requests for JSON resources to web APIs. It’s easy to think of JavaScript playing this role because it is categorized as “client side.” However, JavaScript isn’t the only language that can make HTTP requests for JSON resources. HTTP requests can also be made by a server-side web framework.
In the scenario where JSON is requested by a server-side technology, its role becomes the client. Here are some example scenarios where HTTP requests are made by server-side web framework code:
- Using a web API for data to populate dynamic pages of a website. This could be a public third-party web API or your own private web API such as CouchDB. ...
Chapter 9. Server-Side JavaScript
We have been focusing so far on the versatility of JavaScript as the language of the browser. It speaks volumes about the brilliance of the language given that JavaScript has gained significant popularity as a language to program scalable server systems. In this chapter, we will look at Node.js. Node.js is one of the most popular JavaScript frameworks used for server-side programming. Node.js is also one of the most watched project on GitHub and has superb community support.
Node uses V8, the virtual machine that powers Google Chrome, for server-side programming. V8 gives a huge performance benefit to Node because it directly compiles the JavaScript into native machine code over executing bytecode or using an interpreter ...
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