Referenced from lesson Defining Functions
Directions: Define a function called sticker, which draws 50px stars in whatever color is input.
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 nametag, which consumes a Row of the animals table and draws their name in purple, 10px letters. (Assume you have rows animalA and animalB defined.)
Contract and Purpose Statement |
Every contract has three parts…
# nametag::(r :: Row)->Image
# Consumes an animal, and produces that animal’s name in purple, 10px letters.
Examples |
Write some examples, then circle and label what changes…
examples:
__nametag ("animalA") _________is ___________________________________
_________ (_________) _________is ___________________________________
end
Definition |
Write the definition, giving variable names to all your input values…
fun nametag(r):
__text(r["name"], 10, "purple")
end
These materials were developed partly through support of the National Science Foundation,
(awards 1042210, 1535276, 1648684, and 1738598). 
Bootstrap:Data Science by Emmanuel Schanzer, Nancy Pfenning, Emma Youndtsmith, Jennifer Poole, Shriram Krishnamurthi, Joe Politz, Ben Lerner, Flannery Denny, and Dorai Sitaram with help from Eric Allatta and Joy Straub
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.