Catamorphism: Difference between revisions

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=={{header|Quackery}}==
=={{header|Quackery}}==
Among its many other uses, <code>witheach</code> can act like reduce. In the Quackery shell (REPL):
Among its many other uses, <code>witheach</code> can act like reduce. In the Quackery shell (REPL):
<lang quackery>/O> 0 ' [ 1 2 3 4 5 ] witheach [ + ]
<lang quackery>/O> 0 ' [ 1 2 3 4 5 ] witheach +
... 1 ' [ 1 2 3 4 5 ] witheach [ * ]
... 1 ' [ 1 2 3 4 5 ] witheach *
...
...