Arithmetic Operator in JavaScript

JS - Arithmetic Operator
Arithmetic Operator का use Operand पर Arithmetic operators apply करने के लिए किया जाता हैं|
Operators Description Examples
+ Addition if a=6, b=3;
a+b = 9
- Subtraction if a=6, b=3;
a-b = 3
* Multiplication if a=6, b=3;
a*b = 18
/ Division if a=6, b=3;
a/b = 2
% Modulus if a=6, b=3;
a%b = 0
++ Increment if a=6;
a++ = 6
++a =7
-- Decrement if a=6;
a-- = 6
--a =5

Addition(+) Arithmetic Operator

Operands को add करने के लिए इस operator का use किया जाता हैं|

Q :- Addition(+) Arithmetic Operator in JavaScript.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Addition(+) Arithmetic Operator</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0,add=0;

a=prompt("Enter a Number",6);
b=prompt("Enter b Number",3);

a=parseInt(a);
b=parseInt(b);

add=a+b;

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");
document.write("Addition : "+add);

</script>
</body>
</html>

Output :-

a : 6
b : 3
Addition : 9

Subtraction(-) Arithmetic Operator

Operands को subtract करने के लिए इस operator का use किया जाता हैं|

Q :- Subtraction(-) Arithmetic Operator in JavaScript.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Subtraction(-) Arithmetic Operator</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0,sub=0;

a=prompt("Enter a Number",6);
b=prompt("Enter b Number",3);

a=parseInt(a);
b=parseInt(b);

sub=a-b;

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");
document.write("Subtraction : "+sub);

</script>
</body>
</html>

Output :-

a : 6
b : 3
Subtraction : 3

Multiplication(*) Arithmetic Operator

Operands को multiply करने के लिए इस operator का use किया जाता हैं|

Q :- Multiplication(*) Arithmetic Operator in JavaScript.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Multiplication(*) Arithmetic Operator</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0,mul=0;

a=prompt("Enter a Number",6);
b=prompt("Enter b Number",3);

a=parseInt(a);
b=parseInt(b);

mul=a*b;

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");
document.write("Multiplication : "+mul);

</script>
</body>
</html>

Output :-

a : 6
b : 3
Multiplication : 18

Division(/) Arithmetic Operator

Operands को divide करने के लिए इस operator का use किया जाता हैं|

Q :- Division(/) Arithmetic Operator in JavaScript.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Division(/) Arithmetic Operator</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0,div=0;

a=prompt("Enter a Number",6);
b=prompt("Enter b Number",3);

a=parseInt(a);
b=parseInt(b);

div=a/b;

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");
document.write("Division : "+div);

</script>
</body>
</html>

Output :-

a : 6
b : 3
Division : 2

Modulus(%) Arithmetic Operator

दो operands से remainder निकालने के लिए इस operator का use किया जाता हैं|

Q :- Modulus(%) Arithmetic Operator in JavaScript.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Modulus(%) Arithmetic Operator</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0,mod=0;

a=prompt("Enter a Number",6);
b=prompt("Enter b Number",3);

a=parseInt(a);
b=parseInt(b);

mod=a%b;

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");
document.write("Modulus : "+mod);

</script>
</body>
</html>

Output :-

a : 6
b : 3
Modulus : 0

Increment(++) Arithmetic Operator

Operands को एक से बढाने के लिए इस operator का use किया जाता हैं|

Q :- Write a program to extract a prefix increment in JavaScript by entering a number.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>(++)Prefix Increment</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0;

a=prompt("Enter a Number",6);

a=parseInt(a);

b=++a; // Prefix Increment

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");

</script>
</body>
</html>

Output :-

a : 7
b : 7

Q : Write a program to extract a postfix increment in JavaScript by entering a number.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Postfix Increment(++)</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0;

a=prompt("Enter a Number",6);

a=parseInt(a);

b=a++; // Postfix Increment(++)

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");

</script>
</body>
</html>

Output :-

a : 7
b : 6

Decrement(--) Arithmetic Operator

Operands को एक से घटने के लिए इस operator का use किया जाता हैं|

Q : Write a program to extract a prefix decrement in JavaScript by entering a number.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>(--)Prefix Decrement</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0;

a=prompt("Enter a Number",6);

a=parseInt(a);

b=--a; // (--)Prefix Decrement

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");

</script>
</body>
</html>

Output :-

a : 5
b : 5

Q : Write a program to extract a postfix decrement in JavaScript by entering a number.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Postfix Decrement(--)</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0;

a=prompt("Enter a Number",6);

a=parseInt(a);

b=a--; // Postfix Decrement(--)

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");

</script>
</body>
</html>

Output :-

a : 5
b : 6

Q : Increment and Decrement Program in JavaScript.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Increment and Decrement</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0,c=0;

a=prompt("Enter a Number",6);
b=prompt("Enter b Number",7);

a=parseInt(a);
b=parseInt(b);

c=(++a)*(b--);

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");
document.write("c : "+c+"<br>");

</script>
</body>
</html>

Output :-

a : 7
b : 6
c : 49

Q :- Increment and Decrement Program in JavaScript.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Increment and Decrement</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0,c=0;

a=prompt("Enter a Number",5);
b=prompt("Enter b Number",6);

a=parseInt(a);
b=parseInt(b);

c=(++a)+(a--)+(++b)+(b--);

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");
document.write("c : "+c+"<br>");

</script>
</body>
</html>

Output :-

a : 6
b : 5
c : 26

Q :- Increment and Decrement Program in JavaScript.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Increment and Decrement</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0,c=0;

a=prompt("Enter a Number",5);
b=prompt("Enter b Number",6);

a=parseInt(a);
b=parseInt(b);

c=[(++a)*(--b)]*[(a--)*(b--)];

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");
document.write("c : "+c+"<br>");

</script>
</body>
</html>

Output :-

a : 5
b : 4
c : 900

Q :- Increment and Decrement Program in JavaScript.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Increment and Decrement</title>
</head>
<body>
<script type="text/javascript">var a=0,b=0,c=0,d=0;

a=prompt("Enter a Number",5);
b=prompt("Enter b Number",6);
c=prompt("Enter c Number",7);

a=parseInt(a);
b=parseInt(b);
c=parseInt(c);

d=[(++a)*(++b)+(++c)]*[(a--)*(b--)*(c--)];

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");
document.write("c : "+c+"<br>");
document.write("d : "+d+"<br>");

</script>
</body>
</html>

Output :-

a : 5
b : 6
c : 7
d : 16800

Q:- Write a JavaScript program in enter the five number and find the average.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Average Number</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0,c=0,d=0,e=0,sum=0,avg=0;

a=prompt("Enter a Number",5);
b=prompt("Enter b Number",6);
c=prompt("Enter c Number",7);
d=prompt("Enter d Number",8);
e=prompt("Enter e Number",9);

a=parseInt(a);
b=parseInt(b);
c=parseInt(c);
d=parseInt(d);
e=parseInt(e);

sum=a+b+c+d+e;

avg=sum/5;

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");
document.write("c : "+c+"<br>");
document.write("d : "+d+"<br>");
document.write("e : "+e+"<br>");
document.write("average : "+avg+"<br>");

</script>
</body>
</html>

Output :-

a : 5
b : 6
c : 7
d : 8
e : 9
average : 7

Q :- Write a JavaScript Program with Variable.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>with Variable</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0,c=0;

a=prompt("Enter a Number",5);
b=prompt("Enter b Number",6);

a=parseInt(a);
b=parseInt(b);

c=a+b;
b=c-b;
a=c-b;

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");

</script>
</body>
</html>

Output :-

a : 6
b : 5

Q :- Write a JavaScript program to change the value of a and b without the help of variable.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>without Variable</title>
</head>
<body>
<script type="text/javascript">

var a=0,b=0;

a=prompt("Enter a Number",5);
b=prompt("Enter b Number",6);

a=parseInt(a);
b=parseInt(b);

a=b-a;
b=b-a;
a=b+a;

document.write("a : "+a+"<br>");
document.write("b : "+b+"<br>");

</script>
</body>
</html>

Output :-

a : 6
b : 5

Q :- Write a JavaScript Program to input the length and with of the rectangle and print its area.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>rectangle area</title>
</head>
<body>
<script type="text/javascript">

var l=0,w=0,area=0;

l=prompt("Enter Length Value",5);
w=prompt("Enter Width Value",6);

l=parseInt(l);
w=parseInt(w);

area=l*w;

document.write("Length : "+l+"<br>");
document.write("Width : "+w+"<br>");
document.write("Area : "+area);

</script>
</body>
</html>

Output :-

Length : 5
Width : 6
Area : 30

Q :- Write a JavaScript Program to input the radius of the circle and print its area.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>circle area</title>
</head>
<body>
<script type="text/javascript">

var r=0,area=0;

r=prompt("Enter Radius Value",5);

r=parseFloat(r);

area=22/7*r*r;

document.write("Radius : "+r+"<br>");
document.write("Area : "+area);

</script>
</body>
</html>

Output :-

Radius : 5
Area : 78.571

Q :- Write a JavaScript Program to input the Principal Rate and Time and extract its Simple Intrest.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Simple Intrest</title>
</head>
<body>
<script type="text/javascript">

var p=0,r=0,t=0,si=0;

p=window.prompt("Enter Principal Amount",5000);
r=window.prompt("Enter Rate",5);
t=window.prompt("Enter Time",2);

p=parseInt(p);
r=parseInt(r);
t=parseInt(t);

si=p*r*t/100;

document.write("Principal : "+p+"Rs"+"<br>");
document.write("Rate : "+r+"%"+"<br>");
document.write("Time : "+t+"Year"+"<br>");
document.write("Simple Intrest : "+si+"Rs");

</script>
</body>
</html>

Output :-

Principal : 5000Rs
Rate : 5%
Time : 2Year
Simple Intrest : 500Rs

Q : Write a JavaScript Program to convert fahrenheit to celsius.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>fahrenheit to celsius</title>
</head>
<body>
<script type="text/javascript">

var f=0,c=0;

f=window.prompt("Enter Fahrenheit Value",32);
f=parseFloat(f);

c=[(f-32)*5]/9;

document.write("Fahrenheit : "+f+"<br>");
document.write("Celsius : "+c);

</script>
</body>
</html>

Output :-

Fahrenheit : 32
Celsius : 0

Q :- Write a JavaScript Program to convert celsius to fahrenheit.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>celsius to fahrenheit</title>
</head>
<body>
<script type="text/javascript">

var f=0,c=0;

c=window.prompt("Enter Celsius Value",0);
c=parseFloat(c);

f=(9*c)/5+32;

document.write("Celsius : "+c+"<br>");
document.write("Fahrenheit : "+f);

</script>
</body>
</html>

Output :-

Celsius : 0
Fahrenheit : 32

Q :- Write a JavaScript program to extract the student's total marks and percentage by inputting the student's name and subjects' marks.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Marksheet</title>
</head>
<body>
<script type="text/javascript">

var name,m=0,h=0,s=0,sst=0,e=0,san=0,tm=0,per=0;

name=window.prompt("Enter Your Name","Amit");

m=window.prompt("Enter Your Math Marks",85);
h=window.prompt("Enter Your Hindi Marks",90);
s=window.prompt("Enter Your Science Marks",70);
sst=window.prompt("Enter Your Sco.Science Marks",80);
e=window.prompt("Enter Your English Marks",78);
san=window.prompt("Enter Your Sanskrit Marks",75);

m=parseInt(m);
h=parseInt(h);
s=parseInt(s);
sst=parseInt(sst);
e=parseInt(e);
san=parseInt(san);

tm=m+h+s+sst+e+san;
per=tm/6;

document.write("Name : "+name+"<br>");
document.write("Math : "+m+"<br>");
document.write("Science : "+s+"<br>");
document.write("Sco.Science : "+sst+"<br>");
document.write("Hindi : "+h+"<br>");
document.write("English : "+e+"<br>");
document.write("Sanskrit : "+san+"<br>");
document.write("Total Marks : "+tm+"<br>");
document.write("Percentage : "+per+"%"+"<br>");

</script>
</body>
</html>

Output :-

Name : Amit
Math : 85
Science : 70
Sco.Science : 80
Hindi : 90
English : 78
Sanskrit : 75
Total Marks : 478
Percentage : 79.67%

Q :- Write a JavaScript program to make a Salary Statement.

Source Code :

<!DOCTYPE html>
<html>
<head>
<title>Salary Statement</title>
</head>
<body>
<script type="text/javascript">

var ei,en,bs=0,da=0,hra=0,pf=0,gs=0,epf=0,lic=0,td=0,ns=0;

ei=window.prompt("Enter Your Employee Id",101);
en=window.prompt("Enter Your Employee Name","Amit");
bs=window.prompt("Enter Your Basic Salary",5000);

bs=parseInt(bs);

da=bs*10/100;
hra=bs*7.5/100;
pf=bs*15/100;
gs=da+hra+pf+bs;
epf=pf/2;
lic=epf/2;
td=epf+lic;
ns=gs-td;

document.write("Employee Id : "+ei+"<br>");
document.write("Employee Name : "+en+"<br>");
document.write("Basic Salary : "+bs+"<br>");
document.write("Dearness Allowance : "+da+"<br>");
document.write("House Rent Allowance : "+hra+"<br>");
document.write("Provident fund : "+pf+"<br>");
document.write("Gross Salary : "+gs+"<br>");
document.write("Employee Provident fund : "+epf+"<br>");
document.write("Life Insurance Corporation : "+lic+"<br>");
document.write("Total Deduction : "+td+"<br>");
document.write("Net Salary : "+ns);

</script>
</body>
</html>

Output :-

Employee Id : 101
Employee Name : Amit
Basic Salary : 5000
Dearness Allowance : 500
House Rent Allowance : 375
Provident fund : 750
Gross Salary : 6625
Employee Provident fund : 375
Life Insurance Corporation : 187.5
Total Deduction : 562.5
Net Salary : 6062.5

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