Unit 20 Client Side Customisation of Web Pages (P3, M2 and D1).

UNIT 20 – CLIENT-SIDE
CUSTOMIZATION OF WEB PAGES

,Explain the main features of the chosen
scripting language (P3).
What is scripting language?
A scripting or script language is basically programming
language where instructions are written for a run time
environment that automates the execution of tasks.
All scripting languages are programming languages.
They do not need the compilation step and are rather
interpreted. A scripting language designed for
integrating and communicating with other
programming languages.
Some of scripting languages includes JavaScript,
VBScript, PHP, Perl, Python, Ruby and ASP. Since a
scripting language is normally used in conjunction with
another programming language, they are often found
with HTML, Java or C++.

,How scripting languages works on
webpages?
 Scripting are embedded within a website and
interact with the HTML of the site, selecting
elements of it then operate with those elements to
provide an interactive experience.
 Scripting language interact with CSS file that styles
how the page looks.
 Scripting languages in web pages Send requests
to the server, and retrieve data from it and display
it on web page.

, Types of scripting languages.
 Server side scripting languages.
These type of scripting languages that can use huge
resources of the server. These scripting languages
complete all processing in the server and send plain pages
to the sever. The server-side scripting constructs a
communication link between a server and a client. For
examples;
▪ PHP. This is the server side scripting languages designed
to extract and manipulate information in the database.
▪ Python. It concentrates readability and simplicity of the
code.
▪ Ruby. It contains complex logic which packages the
back-end with database utility