[v3] Add prerequisites to Practice Exercises #583
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -489,7 +489,7 @@ | |
| "slug": "hello-world", | ||
| "name": "Hello World", | ||
| "uuid": "cc96d65d-1c79-40d0-8fd2-9a6665a43b01", | ||
| "prerequisites": ["basics"], | ||
| "difficulty": 1, | ||
| "topics": [ | ||
| "strings" | ||
|
|
@@ -499,7 +499,13 @@ | |
| "slug": "rna-transcription", | ||
| "name": "RNA Transcription", | ||
| "uuid": "a4629a60-752f-4234-99f1-6b3ac0b4ba18", | ||
| "prerequisites": [ | ||
| "charlists", | ||
| "pattern-matching", | ||
| "multiple-clause-functions", | ||
| "case", | ||
| "enum" | ||
| ], | ||
| "difficulty": 2, | ||
| "topics": [ | ||
| "strings" | ||
|
|
@@ -509,7 +515,12 @@ | |
| "slug": "word-count", | ||
| "name": "Word Count", | ||
| "uuid": "4a24ba2f-ae92-4095-be53-64bc881422ea", | ||
| "prerequisites": [ | ||
| "strings", | ||
| "regular-expressions", | ||
| "enum", | ||
| "maps" | ||
| ], | ||
| "difficulty": 2, | ||
| "topics": [ | ||
| "lists", | ||
|
|
@@ -521,7 +532,17 @@ | |
| "slug": "roman-numerals", | ||
| "name": "Roman Numerals", | ||
| "uuid": "4c0ece49-5710-43a1-88b3-2fb149de8552", | ||
| "prerequisites": [ | ||
| "strings", | ||
| "recursion", | ||
| "guards", | ||
| "default-arguments", | ||
| "multiple-clause-functions", | ||
| "enum", | ||
| "maps", | ||
| "cond", | ||
| "case" | ||
| ], | ||
| "difficulty": 2, | ||
| "topics": [ | ||
| "algorithms", | ||
|
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@@ -532,7 +553,11 @@ | |
| "slug": "bob", | ||
| "name": "Bob", | ||
| "uuid": "d20b49dc-cb6d-45fc-a168-78d002072c75", | ||
| "prerequisites": [ | ||
| "strings", | ||
| "regular-expressions", | ||
| "cond" | ||
| ], | ||
| "difficulty": 2, | ||
| "topics": [ | ||
| "control_flow", | ||
|
|
@@ -543,7 +568,13 @@ | |
| "slug": "beer-song", | ||
| "name": "Beer Song", | ||
| "uuid": "24db624b-7c80-409d-97d5-e1177f025c67", | ||
| "prerequisites": [ | ||
| "strings", | ||
| "multiple-clause-functions", | ||
| "ranges", | ||
| "enum", | ||
| "recursion" | ||
| ], | ||
| "difficulty": 3, | ||
| "topics": [ | ||
| "pattern_matching", | ||
|
|
@@ -554,7 +585,16 @@ | |
| "slug": "robot-simulator", | ||
| "name": "Robot Simulator", | ||
| "uuid": "e5e55560-852f-4551-b4da-c9f4a3141470", | ||
| "prerequisites": [ | ||
| "multiple-clause-functions", | ||
| "guards", | ||
| "pattern-matching", | ||
| "case", | ||
| "strings", | ||
| "enum", | ||
| "structs", | ||
| "errors" | ||
| ], | ||
| "difficulty": 6, | ||
| "topics": [ | ||
| "pattern_matching", | ||
|
|
@@ -565,7 +605,13 @@ | |
| "slug": "list-ops", | ||
| "name": "List Ops", | ||
| "uuid": "86658a31-d401-401b-80df-2c4df35f9b15", | ||
| "prerequisites": [ | ||
| "lists", | ||
| "recursion", | ||
| "tail-call-recursion", | ||
| "multiple-clause-functions", | ||
| "pattern-matching" | ||
| ], | ||
| "difficulty": 4, | ||
| "topics": [ | ||
| "enumeration", | ||
|
|
@@ -577,7 +623,16 @@ | |
| "slug": "markdown", | ||
| "name": "Markdown", | ||
| "uuid": "5dfa24bf-e77c-47c6-88e1-e50cbeecd159", | ||
| "prerequisites": [ | ||
| "strings", | ||
| "enum", | ||
| "recursion", | ||
| "regular-expressions", | ||
| "multiple-clause-functions", | ||
| "pattern-matching", | ||
| "cond", | ||
| "if" | ||
| ], | ||
| "difficulty": 5, | ||
| "topics": [ | ||
| "refactoring" | ||
|
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@@ -587,7 +642,11 @@ | |
| "slug": "bank-account", | ||
| "name": "Bank Account", | ||
| "uuid": "5d5e0f6c-f4b7-418e-88f8-4b1d0f99bfb0", | ||
| "prerequisites": [ | ||
| "processes", | ||
| "agent", | ||
| "genserver" | ||
| ], | ||
| "difficulty": 7, | ||
| "topics": [ | ||
| "otp" | ||
|
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@@ -597,7 +656,16 @@ | |
| "slug": "zipper", | ||
| "name": "Zipper", | ||
| "uuid": "bc315734-051c-4735-9a8a-3aacb094d2ca", | ||
| "prerequisites": [ | ||
| "recursion", | ||
| "structs", | ||
| "protocols", | ||
|
There was a problem hiding this comment. I don't think protocols are necessary to solve this exercise, but the boilerplate code includes a protocol implementation (https://github.com/exercism/elixir/blob/main/exercises/practice/zipper/lib/bin_tree.ex#L15-L33) so I added it here to avoid students being confused by the boilerplate. There was a problem hiding this comment. I think Zipper used to appear after Clock, so they were introduced to protocols by that point. I don't think students that I have encountered have been confused by this at this point with Clock having been removed from the core pathway. |
||
| "if", | ||
| "nil", | ||
| "case", | ||
| "pattern-matching", | ||
| "multiple-clause-functions" | ||
| ], | ||
| "difficulty": 8, | ||
| "topics": [ | ||
| "algorithms", | ||
|
|
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I am adding "errors" as a prerequisite to each exercise that uses the
{:ok, any} | {:error, any} | :errorpattern. I'm not entirely sure if that's a good idea because the "errors" concept is very far down the concept tree. Maybe it would be better to assume that tuples and atoms are enough? What do you think?There was a problem hiding this comment.
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I could go either way on this. If there aren't enough exercises earlier on, we could leave that out an let tuples be enough. If there are, we could leave it and wait to name the pattern before the exercise appears.
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We have very few exercises early on. I think I'm going to use this concept as a way of steering people into easier exercises. So for easy ones, like
triangle, I'm going to removeerrorsas a prerequisite so that people can do it early. They are unlikely to overcomplicate those by trying to raise and rescue :). But for complicated ones, likeforthorrobot-simulator, I'll keeperrorsas a prerequisite, "for the student's own good".