JavaScript Operators

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JavaScript operators are used to assign values, compare values, perform arithmetic operations, etc.

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JavaScript Arithmetic Operators

Arithmetic operators are used to perform operations on two variables or values.

Assignmenty = 5, The following table will explain to you the use of arithmetic operators:

Operator	Description	Example	y value	x value	Online example
+	Addition	x = y + 2	y = 5	x = 7	Example»
-	Subtraction	x = y - 2	y = 5	x = 3	Example»
*	Multiplication	x = y * 2	y = 5	x = 10	Example»
/	Division	x = y / 2	y = 5	x = 2.5	Example»
%	remainder	x = y % 2	y = 5	x = 1	Instance»
++	increment	x = + +y	y = 6	x = 6	Instance»
		x = y++	y = 6	x = 5	Example»
--	decrement	x = - -y	y = 4	x = 4	Instance»
		x = y--	y = 4	x = 5	Example »

For arithmetic operators, you can read our JavaScript operators tutorial .

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JavaScript assignment operator

The assignment operator is used to assign values ​​to JavaScript variables.

Given x=10 and y=5, the following table explains the assignment operators:

##-=x -= y#x = x - yx = 5Example»* =x *= yx = x * yx = 50Example»/=x /= yx = x / yx = 2Example»%=x %= yx = x % yx = 0Example»

For assignment operators, you can read our JavaScript operators tutorial.

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JavaScript String Operators

+ operator, += operator can be used to concatenate strings.

Given text1 = "Good ", text2 = "Morning", and text3 = "", The following table explains the use of string operators:

Operator	Example	Same As	x Value	Online Example
=	x = y	x = y	x = 5	Example»
+=	x += y	#x = x + y	x = 15	Example»

Operator	Example	text1	text2	text3	Online example
+	text3 = text1 + text2	"Good "	"Morning"	"Good Morning"	Example»
+ =	text1 += text2	"Good Morning"	"Morning"	""	Example»

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Comparison operators

Comparison operators are used to judge logical statements to determine whether two given values ​​or variables are equal.

Given x=5, the following table shows the use of comparison operators:

## !==The value and type are not equal (not equal)x !== "5"trueInstance»x !== 5falseInstance»> Greater than x > 8falseExample»<Less than x < 8trueInstance»>= is greater than or equal to x >= 8falseInstance»<= is less than or equal to x <= 8Example»

For comparison operators, you can read our JavaScript Comparison operators tutorial.

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Conditional operator

The conditional operator is used for assignment operations based on conditions.

Givenx=6 and y=3, the following table demonstrates the operation of the conditional operator:

Operator	Description	Comparison	Result	Online instance
==	equals	x == 8	false	Instances»
		x == 5	true	Instances »
===	The value and type are equal (identical to)	x === "5"	false	Instance»
		x === 5	true	Instance»
!=	is not equal to	x != 8	true	Example»
			true

Syntax	Example	Online example
Variable= (Condition) ? Value 1:Value 2	voteable = (age & 18) ? "Too young" : "Old enough"	Example»

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Logical operators

Logical operators are used to determine the logical relationship between variables or values.

Givenx=6 and y=3, the following example demonstrates the use of logical operators:

##&&and(x < 10 && y > 1) is true##||!

Operator	Description	Example
or	(x == 5 || y == 5) is false
Not	!(x == y) is true

##JavaScript Bit operators

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Bit operators work on 32-bit numbers. Any numeric operations will be converted to 32 bits. The result is converted to a JavaScript number.

OperatorDescriptionExampleSimilar toResultDecimal&ANDx = 5 & 10101 & 00010001 1OR##~ Negationx = ~ 5 ~01011010 10x = 5 ^ 1##<<Shift left/td>x = 5 << 10101 << 11010 10>>Shift rightx = 5 >> 10101 >> 100102

					##|
x = 5 | 1	0101 | 0001	0101	5
				##^	XOR
0101 ^ 0001	0100	4
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