Operations on Tables

Tables are "stretchy," in that they allow the addition and removal of keys, but they are not stretchy sequences (because they are not sequences). <table> and its subclasses are the only predefined classes that are stretchy but are not stretchy sequences. <table> provides an implementation of the Iteration Protocol, using the function table-protocol. Every concrete subclass of <table> must provide or inherit a methodfor table-protocol. See the Table Protocol section for details.

remove-key!   table key  => table	[Generic Function]

remove-key! modifies table so that it no longer has a key equal to key. Equality is determined by the table's test function.

element-setter   new-value table key 	[G. F. Method]

Even if no element with the given key exists, element-setter for a table will add key and new-value to the table.