Mutability
Mutable means that a memory location can be reassigned new values.
Related concepts: ValueAssignmentVariable
Closest Wikipedia entry: Immutable object
Misconceptions about Mutability8 documented Misconceptions
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FinalReferenceImpliesImmutability — Java
An object referred to by a final variable is an immutable object
ImmutableRequiresFinalParameters — Java
Immutable classes need final constructor/method parameters
PrivateFieldsImplyImmutability — Java
A class where all fields are private is immutable
PrivateMeansFinal — Java
A private field cannot be changed
ThisAssignable — Java
One can assign to this
ConstReferenceImpliesImmutability — JavaScript
An object referred to by a const variable is an immutable object
ThisAssignable — JavaScript
One can assign to this
SelfAssignable — Python
Reassigning self changes the object on which a method is called