JavaScript Operators




JavaScript Operators

JavaScript has the following types of operators. This section describes the javascript operators and operator precedence.

  • Assignment operators
  • Comparison operators
  • Arithmetic operators
  • Bitwise operators
  • Logical operators
  • String operators
  • Conditional (ternary) operator
  • Comma operator
  • Unary operators
  • Relational operator

JavaScript Arithmetic Operators

Arithmetic operators take numerical values (either literals or variables) as their operands and return a single numerical value.

Arithmetic operators are used to perform arithmetic on numbers

For more understanding let us assume that value of y = 10, the table below explains the arithmetic operators with the y value as 10:

Operator Description Example Result Try It Now

+

Addition operator. x = y + 20 x = 30 and y = 20 Try It

-

Subtraction operator. x = y - 20 x = -10 and y = 10 Try It

/

Division operator. x = y / 2 x = 5 and y = 10 Try It

*

Multiplication operator. x = y * 2 x = 20 and y = 10 Try It

%

Remainder operator. x = y % 2 x = 5 and y = 10 Try It


Assignment operators

An assignment operator assigns a value to its left operand based on the value of its right operand.The simple assignment operator is equal (=), which assigns the value of its right operand to its left operand. That is, a = b assigns the value of b to a.

Operator Description Shorthand Operator Meaning Example
= Assignment Operator x = y x = y Try It
*= Multiplication Assignment x *= y x = x * y Try It
/ = Division Assignment x /= y x = x / y Try It
+ = Addition Assignment x += y x = x + y Try It
- = Subtraction Assignment x -= y x = x - y Try It
% = Remainder Assignment x %= y x = x % y Try It
<< = Left shift Assignment x <<= y x = x >> y
>> = Right shift Assignment x >>= y x = x >> y
>>> = Unsigned Right shift Assignment x >>>= y x = x >>> y
&= Bitwise AND Assignment x &= y x = x & y
^= Bitwise XOR Assignment x ^= y x = x ^ y
| = Bitwise OR Assignment x |= y x = x | y


JavaScript Equality operators

The equality operator always returns the boolean type as its output based on its comparison

Operator Description
== Equality Operator
!= Inequality operator.
=== Identity Operator
!== Nonidentity Operator

Bitwise shift operators

Bitwise operators are used to shift all bits of operands

Operator Description
<< Bitwise left shift Operator
>> Bitwise right shift operator.
>>> Bitwise unsigned right shift Operator


JavaScript Binary bitwise operators

Bitwise operators treat their operands as a set of 32 bits (zeros and ones) and return standard JavaScript numerical values

Operator Description
& Bitwise AND Operator
| Bitwise OR operator.
^ Bitwise XOR Operator


Practice with our Interactive Editor and take your JavaScript Skills to the next level

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