JavaScript Assignment Operators

Assignment operators assign values to JavaScript variables.

Shift Assignment Operators

Bitwise Assignment Operators

Logical Assignment Operators

Note: The logical assignment operators are ES2020

The = Operator

The Simple Assignment Operator assigns a value to a variable.

The += Operator

The Addition Assignment Operator adds a value to a variable.

The -= Operator

The Subtraction Assignment Operator subtracts a value from a variable.

The *= Operator

The Multiplication Assignment Operator multiplies a variable.

The **= Operator

The Exponentiation Assignment Operator raises a variable to the power of the operand.

The /= Operator

The Division Assignment Operator divides a variable.

The %= Operator

The Remainder Assignment Operator assigns a remainder to a variable.

The <<= Operator

The Left Shift Assignment Operator left shifts a variable.

The >>= Operator

The Right Shift Assignment Operator right shifts a variable (signed).

The >>>= Operator

The Unsigned Right Shift Assignment Operator right shifts a variable (unsigned).

The &= Operator

The Bitwise AND Assignment Operator does a bitwise AND operation on two operands and assigns the result to the the variable.

The |= Operator

The Bitwise OR Assignment Operator does a bitwise OR operation on two operands and assigns the result to the variable.

The ^= Operator

The Bitwise XOR Assignment Operator does a bitwise XOR operation on two operands and assigns the result to the variable.

The &&= Operator

The Logical AND assignment operator is used between two values. If the first value is true, the second value is assigned.

The &&= operator is an ES2020 feature.

The ||= Operator

The Logical OR assignment operator is used between two values. If the first value is false, the second value is assigned.

The ??= Operator

The Nullish coalescing assignment operator is used between two values. If the first value is undefined or null, the second value is assigned.

The ??= operator is an ES2020 feature.