Define a function called is-cat, which consumes a Row of the animals table and computes whether the animal is a cat. HINT: use predefined rows like cat-row to make your examples easier!
Contract and Purpose Statement |
Every contract has three parts…
is-cat::Row->Boolean
Consumes an animal, and checks whether the species == "cat"
Examples |
Write some examples, then circle and label what changes…
examples:
is-cat (cat-row) is cat-row["species"] == "cat"
is-cat (__________) is ______________________________
end
Definition |
Write the definition, giving variable names to all your input values…
fun ______(_):
_____________________
end
Define a function called is-male, which consumes a Row of the animals table and returns true if the animal is male. HINT: use predefined rows like male-row to make your examples easier!
Contract and Purpose Statement |
Every contract has three parts…
_______::___->_______
_
Examples |
Write some examples, then circle and label what changes…
examples:
_______ (________) is _________________________
_______ (__________) is ___________________________
end
Definition |
Write the definition, giving variable names to all your input values…
fun _______(_):
__________________
end
These materials were developed partly through support of the National Science Foundation, (awards 1042210, 1535276, 1648684, 1738598, 2031479, and 1501927). 
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