Expression

An expression is a piece of source code that produces a value at runtime.

Related concepts:  EvaluationValue

Closest Wikipedia entry:  Expression (computer science)

Misconceptions about Expression

51 documented Misconceptions

ArrowFunctionNoImpliedReturn

Even when an arrow function consists just of an expression, the return keyword must be explicitly written

ArrowFunctionRequiresFunctionKeyword

Arrow functions also require the keyword 'function'

ConditionalOperatorNotExpression

The conditional operator is not an expression

IdentifierAsStringInBracketNotation

An identifier used to access a property with the bracket notation is treated as a string

MandatoryAssignment

An expression must be assigned to have a valid statement

NoAtomicExpression

Expressions must consist of more than one piece

NoFunctionCallsChaining

It is not allowed to chain function calls