JAVASCRIPT OPERATORS
JAVASCRIPT OPERATORS
- By Mohammad --
- Monday, 31 May, 2021
JAVASCRIPT OPERATORS
In this topic will discuss about JavaScript Operators
Types of Operators
1. Arithmetic Operators
2. Assignment Operators
3. String Operators
4. Type Operators
5. Comparison Operators
6. Logical Operators
7. Bitwise Operators
JAVASCRIPT OPERATORS WITH EXPLANATION
1. ARITHMETIC OPERATOR
In Arithmetic operators there are 7 types are present, those all arithmetic operators with Examples Explained below.
+ - / * ++ -- **
Lets Discuss Onebyone Clearly
ADDITION, SUBTRACTION, MULTIPLICATION AND DIVISION
<html>
<head>
SCRIPT
var x=10;
var y=20;
Document.write (x+y); OUTPUT : 30
Document.write ('BR/');
Document.write (x-y); OUTPUT : -10
Document.write ('BR/');
Document.write (x/y); OUTPUT : 0.5
Document.write ('BR/');
Document.write (x*y); OUTPUT : 200
/SCRIPT
</head>
<body>
</body>
</html>
INCREMENT OPERATION : Arithmetic increment operation is two types
1. PRE INCREMENT
<html>
<head>
SCRIPT
VAR X=10;
Document.write(++x);
OUTPUT :10;
/SCRIPT
</head>
<body>
</body>
</html>
2. POST INCREMENT
Post increment means it will increment the value and prints the updated value in next usage
<html>
<head>
SCRIPT
Example -1
VAR X=10;
Document.write(x++);
OUTPUT :10;
Example -1
VAR X=10;
Document.write(x++);
OUTPUT :10;
Document.write(x);
OUTPUT :11;
/SCRIPT
</head>
<body>
</body>
</html>
DECREMENT OPERATION : Arithmetic decrement operation is two types
1. PRE DECREMENT
<html>
<head>
SCRIPT
VAR X=10;
Document.write(--x);
OUTPUT :9;
/SCRIPT
</head>
<body>
</body>
</html>
2. POST DECREMENT
<html>
<head>
SCRIPT
Example -1
VAR X=10;
Document.write(x--);
OUTPUT :10;
Example -1
VAR X=10;
Document.write(x--);
OUTPUT :10;
Document.write(x);
OUTPUT :9;
/SCRIPT
</head>
<body>
</body>
</html>
EXPONENTIAL OPERATOR
<html>
<head>
SCRIPT
VAR X=10;
VAR Y=X**3;
Document.write(Y);
OUTPUT IS : 1000.
[(y=x**n) In Exponential Operation x value is multiplied with x value in "n" times and the n value is given after exponetioal operation]
/SCRIPT
</head>
<body>
</body>
</html>
2.ASSIGNMENT OPERATOR
SAME AS ARITHMETIC OPERATOR WITH SOME EXTRA ADDTIONAL OPERATORS
= += -= /= *= **=
Its function is that i will assign the right hand values to left hand variables
EXPLANATION :
<html>
<head>
SCRIPT
ADDITION
VAR x=10;
x+=10;
[x+=10 It means add 10 value with x and result will srore in X variable onle i.e x=x+10
Document.write(x);
OUTPUT :20;
x=x+10 => x+=10 [Short form]
SUBTRACTION
VAR x=10;
x-=2;
OUTPUT :8;
MULTIPLICATION
VAR x=10;
x*=2;
OUTPUT :20;
DIVISION
VAR x=10;
x/=2;
OUTPUT :5;
EXPONENTIAL
VAR x=10;
x**=2;
OUTPUT :100;
/SCRIPT
</head>
<body>
</body>
</html>
3.STRING OPERATOR
It is used if you want to add or concatenate two strings
+
<html>
<head>
SCRIPT
var fname='Abdul';
var lname='Ahamad';
Document.write(fname+lname);
OUTPUT : AbdulAhamad.
Document.write(fname+''+lname); [ To get the space between two strings]
OUTPUT : Abdul Ahamad.
var x=10;
var y='10';
[removed](x+y);
OUTPUT :1010
/SCRIPT
</head>
<body>
</body>
</html>
4.TYPE OPERATOR
1.Typeof
it will give the variables data type
<html>
<head>
SCRIPT
var x=10;
Document.write (typeof x);
OUTPUT : NUMBER;
/SCRIPT
</head>
<body>
</body>
</html>
2.INSTANCE OF
we will discuss about instance of operator while we discuss about object oriented programming .
5. COMAPARISON
== === > < != !== >= <= ?
= Assignment [Assignes the righthand side value to lefthand side value]
== Comparison the values
=== Comapres values along with Compares Datatypes
< > Condition Checking
!= If left hand side value and right hand side values are not equal to it give result TRUYE
!== If left hand side value and right hand side values are not equal and check datatype also in data type also not same it gives the result TRUE
>= Checks x values greater or euql to y
<= Checks x values lessthan or euql to y
TERNARY OPERATOR [?]
SHORT VERSION OF IF AND ELSE CONDITION
EXAMPLE :
<html>
<head>
SCRIPT
var marks=50;
var result=(marks>60)?"1st":"Any";
Document.write (result);
OUTPUT : Any
var age=50;
var result=(age>=60)?"S. Citizen":"No";
Document.write (result);
OUTPUT : No
/SCRIPT
</head>
<body>
</body>
</html>
6. LOGICAL OPERATOR
Conditional operators
&& [AND]
|| [OR]
! [NOT]
<html>
<head>
SCRIPT
AND OPERATOR
var X=12;
var y=12;
var result=(x>5 && y>8);
Document.write (result);
OUTPUT : true
OR OPERATOR
var X=12;
var y=12;
var result=(x>5 || y<8>
Document.write (result);
OUTPUT : true
NOT OPERATOR
var x=true;
Document.write (!x);
OUTPUT : false
/SCRIPT
</head>
<body>
</body>
</html>
7.BITWISE OPERATOR
32bits [ 32 16 8 4 2 ]
& | ~ ^ << >>
& AND
| OR
~ NOT
^ EX-OR
<< LEFT>
>> RIGHT-SHIFT
These Bitwise operations will performed as per guidelines .
EXAMPLE
Document.write (~5);
Explanation : (~5) =[-(5+1)];
These all are the types of JAVASCRIPT OPERATORS.
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