Referenced from lesson Method Chaining (Spring, 2021)

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…​

# __________::___->_______

# __________________________________________________________________

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:Data Science by the Bootstrap Community is licensed under a Creative Commons 4.0 Unported License. This license does not grant permission to run training or professional development. Offering training or professional development with materials substantially derived from Bootstrap must be approved in writing by a Bootstrap Director. Permissions beyond the scope of this license, such as to run training, may be available by contacting contact@BootstrapWorld.org.