Referenced from lesson Method Chaining (Spring, 2021)
You have the following functions defined below (read them carefully!):
fun is-fixed(r): r["fixed"] end
fun is-young(r): r["age"] < 4 end
fun nametag(r): text(r["name"], 20, "red") end
The table t
below represents four animals from the shelter:
name | sex | age | fixed | pounds |
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Match each Pyret expression (left) to the description of what it does (right).
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1 |
A |
Produces a table containing only Toggle and Maple |
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2 |
B |
Produces a table of only young, fixed animals |
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3 |
C |
Produces a table, sorted youngest-to-oldest |
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4 |
D |
Produces a table with an extra column, named "sticker" |
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5 |
E |
Produces a table containing Maple and Toggle, in that order |
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6 |
F |
Produces a table containing the same four animals |
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7 |
G |
Won’t run: will produce an error |
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8 |
H |
Produces a table with an extra "label" column, sorted youngest-to-oldest |
These materials were developed partly through support of the National Science Foundation,
(awards 1042210, 1535276, 1648684, and 1738598).
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