Referenced from lesson Method Chaining

For the word problems below, assume you have animalA and animalB defined in your code.

Directions: Define a function called is-old, which consumes a Row of the animals table and computes whether it is more than 12 years old.

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

Directions: Define a function called name-has-s, which returns true if an animal’s name contains the letter "s"

Contract and Purpose Statement

Every contract has three parts…​

# name-has-s::____________________->_______

# __________________________________________________________________

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 name-has-s(r):

__string-contains(r["name"], "s")

end

These materials were developed partly through support of the National Science Foundation, (awards 1042210, 1535276, 1648684, and 1738598). CCbadge Bootstrap:Integrated Oklahoma by Jen Poole is licensed under a Creative Commons 4.0 Unported License. Based on a work at www.BootstrapWorld.org. Permissions beyond the scope of this license may be available by contacting schanzer@BootstrapWorld.org.