Presentation CSS - Client Side Scripting

Basics of JavaScript
Programming
Unit - I




Prepared By: Khan Mohammed Zaid, Lecturer, Comp. Engg.,
MHSSP

, Difference between Scripting & Programming
Languages
• Basically all the scripting languages are the programming languages

• The theoretical difference between the two is that scripting languag
not require the compilation step and are rather interpreted.

• Generally, compiled programs run faster than interpreted programs
they are first converted native machine code.



Prepared By: Khan Mohammed Zaid, Lecturer, Comp. Engg.,
MHSSP

, Difference between Scripting & Programming
Languages
• Also, compilers read and analyze the code only once, and report the
collectively that the code might have, but the interpreter will read a
analyze the code statements each time it meets them and halts at t
instance if there is some error.

• Some scripting languages traditionally used without an explicit com
step are JavaScript, PHP, Python, VBScript.

• Some programming languages traditionally used with an explicit
compilation step are C, C++.
Prepared By: Khan Mohammed Zaid, Lecturer, Comp. Engg.,
MHSSP

, Difference between Scripting & Programming
Languages
• Applications of Scripting Languages :
oTo automate certain tasks in a program
oExtracting information from a data set
oLess code intensive as compared to traditional programming language


• Applications of Programming Languages :
oThey typically run inside a parent program like scripts
oMore compatible while integrating code with mathematical models
oLanguages like JAVA can be compiled and then used on any platform

Prepared By: Khan Mohammed Zaid, Lecturer, Comp. Engg.,
MHSSP