List

An ordered mutable List with an explicit invariant element type.

Declaration

Choose the type in a Variable/parameter/field type picker. Supply the exact element/key/value/class/Target declaration when prompted. Use the nullable flag only when absence is part of the intended model.

Example

List<Number>

Indices start at 1; failed index searches return 0. Reference inputs share the container. Initialize before use.

Compatibility

Required inputs must be assigned and type-compatible. Nullable values require compatible nullable inputs or coalescing. Collection declarations remain invariant; native Targets and custom classes follow their supported inheritance rules. Final controls a binding, not deep immutability.

Variables · Arguments · Collections · Classes · Expressions