To help you with this page, we’ve re-printed the Contract for the text function, and an example of how to use it.

(Remember, you can always refer to the Contracts Pages. If you’re working with a printed workbook, they are included in the back.)

# text :: (Stringmessage, Numbersize, Stringcolor) -> Image

text​(​"hello", 24, "green"​)

1 On the three lines below, write the code to lookup the value of the species column from dog-row, old-row, and young-row.

2 On the three lines below, write the code that uses the text function to show the species of those same three rows in red, 15px letters.

3 Check with your partner or another student. Do you have the same code? Why or why not?

Instead of writing this out over and over for each animal, let’s define a function to do it for us!

Defining the Function

Define a function called species-tag, which takes in a row from the Animals Table and draws its name in red, 15px letters. HINT: Use of the rows from above in your examples!

Contract and Purpose Statement

Every contract has three parts…​

species-tag::Row->Image

_

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 species-tag(_):

_____________________________

end

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