Module Expr

Provides classes for working with JavaScript programs, as well as JSON, YAML and HTML.

An addition or string-concatenation expression.

A binary arithmetic expression using +, -, /, % or **.

An array comprehension expression.

An array literal.

An arrow function expression.

A compound add-assign expression.

A compound bitwise-‘and’-assign expression.

A compound divide-assign expression.

A compound exponentiate-assign expression.

A simple assignment expression.

A compound left-shift-assign expression.

A logical-‘and’-assign expression.

A logical-‘or’-assign expression.

A compound modulo-assign expression.

A compound multiply-assign expression.

A ‘nullish-coalescing’-assign expression.

A compound bitwise-‘or’-assign expression.

A compound right-shift-assign expression.

A compound subtract-assign expression.

A compound unsigned-right-shift-assign expression.

A compound exclusive-‘or’-assign expression.

An assignment expression, either compound or simple.

An await expression.

A BigInt literal.

An expression with a binary operator.

A bitwise ‘and’ expression.

A bitwise negation expression.

A bitwise ‘or’ expression.

A bitwise binary expression, that is, either a bitwise ‘and’, a bitwise ‘or’, or an exclusive ‘or’ expression.

A bitwise expression using &, |, ^, ~, <<, >>, or >>>.

A Boolean literal, that is, either true or false.

A function call expression.

A comparison expression, that is, either an equality test (==, !=, ===, !==) or a relational expression (<, <=, >=, >).

A compound assign expression.

A comprehension block in a comprehension expression.

A comprehension expression, that is, either an array comprehension expression or a generator expression.

A conditional expression.

A (pre or post) decrement expression.

A program element to which decorators can be applied, that is, a class, a property or a member definition.

A decorator applied to a class, property or member definition.

A delete expression.

A division expression.

A dot expression.

A dynamic import expression.

An equality test using ==.

An equality test using ==, !=, === or !==.

An exponentiation expression.

An expression.

A program element that is either an expression or a type annotation.

A for-in comprehension block in a comprehension expression.

A for-of comprehension block in a comprehension expression.

A function-bind expression.

A (non-arrow) function expression.

A function.sent expression.

A greater-than-or-equal expression.

A greater-than expression.

A placeholder for some code generated by a templating engine, speculatively parsed as an expression.

A generator expression.

An identifier.

An immediately invoked function expression (IIFE).

An import.meta expression.

An in expression.

A (pre or post) increment expression.

An index expression (also known as computed property access).

An instanceof expression.

An invocation expression, that is, either a function call or a new expression.

A less-than-or-equal expression.

A left-shift expression using <<.

A less-than expression.

A statement or property label, that is, an identifier that does not refer to a variable.

An old-style let expression of the form let(vardecls) expr.

A literal.

A logical ‘and’ expression.

A logical negation expression.

A logical ‘or’ expression.

A short-circuiting logical binary expression, that is, a logical ‘or’ expression, a logical ‘and’ expression, or a nullish-coalescing expression.

A logical expression using &&, ||, or !.

A method call expression.

A modulo expression.

A multiplication expression.

An inequality test using !=.

An arithmetic negation expression (also known as unary minus).

A new expression.

A non-strict equality test using != or ==.

A null literal.

A nullish coalescing ‘??’ expression.

A numeric literal.

An object literal, containing zero or more property definitions.

INTERNAL: This class should not be used by queries.

A call or member access that evaluates to undefined if its base operand evaluates to undefined or null.

A parenthesized expression.

A unary plus expression.

A postfix decrement expression.

A postfix increment expression.

A prefix decrement expression.

A prefix increment expression.

A property access, that is, either a dot expression of the form e.f or an index expression of the form e[p].

A property definition in an object literal, which may be either a value property, a property getter, or a property setter.

A property getter or setter in an object literal.

A property getter in an object literal.

A property setter in an object literal.

A right-shift expression using >>.

A regular expression literal.

A relational comparison using <, <=, >=, or >.

A sequence expression (also known as comma expression).

A shift expression.

A spread element.

A spread property in an object literal.

A strict equality test using ===.

A strict equality test using !== or ===.

A strict inequality test using !==.

A string literal, either single-quoted or double-quoted.

A subtraction expression.

A this expression.

A typeof expression.

An unsigned right-shift expression using >>>.

An expression with a unary operator.

An update expression, that is, an increment or decrement expression.

A value property definition in an object literal.

A void expression.

An exclusive ‘or’ expression.

A yield expression.