Expressions and operators

The this keyword refers to a special property of an execution context.

Basic null, boolean, number, and string literals.

Array initializer/literal syntax.

Object initializer/literal syntax.

The function keyword defines a function expression.

The class keyword defines a class expression.

The function* keyword defines a generator function expression.

The async function defines an async function expression.

The async function* keywords define an async generator function expression.

Regular expression literal syntax.

Template literal syntax.

Grouping operator.

Member operators provide access to a property or method of an object (object.property and object["property"]).

The optional chaining operator returns undefined instead of causing an error if a reference is nullish (null or undefined).

The new operator creates an instance of a constructor.

In constructors, new.target refers to the constructor that was invoked by new.

An object exposing context-specific metadata to a JavaScript module.

The super keyword calls the parent constructor or allows accessing properties of the parent object.

The import() syntax allows loading a module asynchronously and dynamically into a potentially non-module environment.

Postfix increment operator.

Postfix decrement operator.

Prefix increment operator.

Prefix decrement operator.

The delete operator deletes a property from an object.

The void operator evaluates an expression and discards its return value.

The typeof operator determines the type of a given object.

The unary plus operator converts its operand to Number type.

The unary negation operator converts its operand to Number type and then negates it.

Bitwise NOT operator.

Logical NOT operator.

Pause and resume an async function and wait for the promise's fulfillment/rejection.

Exponentiation operator.

Multiplication operator.

Division operator.

Remainder operator.

Addition operator.

Subtraction operator.

Less than operator.

Greater than operator.

Less than or equal operator.

Greater than or equal operator.

The instanceof operator determines whether an object is an instance of another object.

The in operator determines whether an object has a given property.

Equality operator.

Inequality operator.

Strict equality operator.

Strict inequality operator.

Bitwise left shift operator.

Bitwise right shift operator.

Bitwise unsigned right shift operator.

Bitwise AND.

Bitwise OR.

Bitwise XOR.

Logical AND.

Logical OR.

Nullish Coalescing Operator.

The conditional operator returns one of two values based on the logical value of the condition.

Assignment operator.

Multiplication assignment.

Division assignment.

Remainder assignment.

Addition assignment.

Subtraction assignment

Left shift assignment.

Right shift assignment.

Unsigned right shift assignment.

Bitwise AND assignment.

Bitwise XOR assignment.

Bitwise OR assignment.

Exponentiation assignment.

Logical AND assignment.

Logical OR assignment.

Nullish coalescing assignment.

Destructuring assignment allows you to assign the properties of an array or object to variables using syntax that looks similar to array or object literals.

Pause and resume a generator function.

Delegate to another generator function or iterable object.

Spread syntax allows an iterable, such as an array or string, to be expanded in places where zero or more arguments (for function calls) or elements (for array literals) are expected. In an object literal, the spread syntax enumerates the properties of an object and adds the key-value pairs to the object being created.

The comma operator allows multiple expressions to be evaluated in a single statement and returns the result of the last expression.