Describe why you might want to write a script vs. a C program. Describe two example...
- Describe why you might want to write a script vs. a C program. Describe two example situations that illustrate your answer, one each for script and C.
Homework Answers
In context of programming,There are 3 types of translators.
1)Interpreter
2)Compiler
3)assembler
The explanation can be given with the help of following example:
script is translated by interpreter, for example, in a web page java script is translated by the interpreter,
and this interpreter is available on web browser.
java script is executed on client side.
if there is a need to write a logic, which is to be executed on web page(on client side).then C program can not work.
java script will be used to write a logic, which is to be executed on web page(on client side).
following code is a combination of java script and HTML,which is being used to determine whether a number is EVEN or ODD,
on web page(on client side).
the code given below will be translated by the interpreter.
code
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<script type="text/javascript">
function test()
{
var a=prompt("Enter a no.");
if(a%2==0)
{
document.write("<body
bgcolor='yellow'>");
document.write("<h1>Even
Number</h1>");
}
else
{
document.write("<body
bgcolor='gray'>");
document.write("<h1>Odd
Number</h1>");
}
}
</script>
</HEAD>
<BODY onLoad="test()">
</BODY>
</HTML>
if the same login is required on local computer's console the C program should be used, and source code will be compiled.
C code to determine whether a number is EVEN or ODD
#include<stdio.h>
int main()
{int num;
printf("Enter a number");
scanf("%d",&num);
if (num%2==0)
{
printf("\n Number is EVEN");
}
else
{
printf("\n
Number is Odd");
}
return 0;
}
Example 2
JavaScript provides a library "Pebble JS".
Now a days this library is being used in smartwatch applications.
Example 3:
Node JS can also be used to program flying Robots.
Application Area of C
1) Operating System:- There is C programming behind UNIX operating system .
2) High speed:- C can be used where high speed of execution is required.
3) Embedded System:- C is being used in Embedded systems.
Summary
script is translated by the interpreter.
java script is used to produce output on web browser
C program is translated by the compiler .
C program is used to produce output on local Computer's console.
Java script should be used for web pages/ mobile devices.
C should be used where high speed of execution is required.
script is translated by interpreter
C program is translated by compiler.
interpreter translates line by line.
Compiler translate entire code in a single attempt and reports all the errors(if any) in a single attempt
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Describe why you might want to write a script vs. a C program.
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