Undefined Object Type

Summary

UndefinedObject is the type of the single 'null' object in the WikiTalk language

Members

Object IfNotNull(Block block)

If this object is not null, answer the result of evaluating the block; else answer null

Object IfNotNullElse(Block notNullBlock, Block nullBlock)

If this object is not null, answer the result of evaluating the first block; else answer the result of evaluating the second block

Object IfNull(Block block)

If this object is null, answer the result of evaluating the block; else answer null

Object IfNullElse(Block nullBlock, Block notNullBlock)

If this object is null, answer the result of evaluating the first block; else answer the result of evaluating the second block

Object IsNull

Answer true if this object is null; else false

With

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