Field
A field is a variable that is a member of a class and may be part of an object.
Related concepts: VariableMemberClassObject
Closest Wikipedia entry: Field (computer science) — In computer science, data that has several parts, known as a record, can be divided into fields (data fields). Relational databases arrange data as sets of database records, so called rows. Each record consists of several fields; the fields of all records form the columns.
Misconceptions about Field21 documented Misconceptions
Check YourselfAccessingInexistentPropertyError
Accessing a non existent property on an object produces an errorIdentifierAsStringInBracketNotation
An identifier used to access a property with the bracket notation is treated as a stringNoBracketNotationForObjects
Square brackets cannot be used to access properties of an object