A guide to all JavaScript operators

General
1

Arithmetic Operators

Arithmetic operators are used for performing mathematical operations.

  • +: Addition
  • -: Subtraction
  • *: Multiplication
  • /: Division
  • %: Modulus (remainder)
  • **: Exponentiation

Comparison Operators

Comparison operators are used to compare values.

  • ==: Equal to (equality, without type checking)
  • ===: Strict equal to (equality with type checking)
  • !=: Not equal to (inequality, without type checking)
  • !==: Strict not equal to (inequality with type checking)
  • >: Greater than
  • <: Less than
  • >=: Greater than or equal to
  • <=: Less than or equal to

Logical Operators

Logical operators are used to combine or modify Boolean values.

  • &&: Logical AND (true if both operands are true)
  • ||: Logical OR (true if at least one operand is true)
  • !: Logical NOT (inverts the Boolean value)

Assignment Operators

Assignment operators are used to assign values to variables.

  • =: Assigns the value on the right to the variable on the left
  • +=: Adds the right operand to the left operand and assigns the result to the left operand
  • -=: Subtracts the right operand from the left operand and assigns the result to the left operand
  • *=: Multiplies the left operand by the right operand and assigns the result to the left operand
  • /=: Divides the left operand by the right operand and assigns the result to the left operand
  • %=: Computes the modulus of the left operand and the right operand and assigns the result to the left operand

Bitwise Operators

Bitwise operators perform operations on binary representations of numbers.

  • &: Bitwise AND
  • |: Bitwise OR
  • ^: Bitwise XOR (exclusive OR)
  • ~: Bitwise NOT (complement)
  • <<: Left Shift
  • >>: Right Shift
  • >>>: Unsigned Right Shift

Conditional (Ternary) Operator

The conditional operator is used to assign a value to a variable based on a condition.

  • condition ? value1 : value2: If the condition is true, value1 is assigned; otherwise, value2 is assigned.

Typeof Operator

The typeof operator is used to determine the type of a value or variable.

  • typeof x: Returns a string indicating the data type of x.

Instanceof Operator

The instanceof operator is used to check if an object is an instance of a particular class or constructor.

  • object instanceof constructor: Returns true if object is an instance of constructor.

In Operator

The in operator is used to check if a property exists in an object.

  • property in object: Returns true if property is found in object.

Reference:

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Thanks, this teaches me about a lot of operators I never knew before :clap:

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