eXtended server-side includes (XSSI) is part of Apache, a freely distributed Web-server application that’s used by many sites, including HotWired. The XSSI module (mod_include) defines a set of commands that Apache will parse after a page is requested, but before it’s sent to the browser. Unlike client-side scripting languages such as JavaScript, XSSI isn’t dependent on the capabilities of the browser and is relatively inexpensive for the server. XSSI allows a variety of variables to pass according to set parameters (this is where the \”extended\” part comes in), while server-side includes are usually limited to including HTML fragments into a served document.
Archive for the ‘Glossary’ Category
Broadband is a general term used to describe any high-speed, high-bandwidth, “always on” internet connection.
Cable modems, DSL modems, satellite link-ups, and T1 lines are all broadband devices. Dial-up modems and other low-bandwidth devices are called “narrowband.”
In JavaScript, expressions are phrases that the interpreter can evaluate. For example,
x + 10and
x < 10are expressions since they can be evaluated, while
x = 10is simply a statement.
In linguistical terms, JavaScript is made up of sentences, phrases, and words. The sentences are JavaScript statements, in which an entire action is expressed. The phrases are JavaScript expressions, in which the elements of the action can be created and put together to make a statement. The words are JavaScript operators, which are used to act upon the data passed to them.
A method is a function assigned to an object. For example, any Form object in JavaScript has a submit method, which, when invoked, submits the form. Since JavaScript functions are also data values, you can combine functions or invoke them from other statements by using methods.
Pretty Good Privacy is a flavor of algorithmic encryption that uses two cipher keys, one public and one private. Anyone can use a public key to send a scrambled message to the receiving party. The private key is then used only by the receiving party to unscramble incoming messages. The two-key system was developed by RSA Data Security, Inc. and PGP is the most popular type of two-key encryption available for public, non-commercial use.
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