d1ee2daf14
fix(structs3.rs): assigned value to cents_per_gram in test
...
Intended to simplify the lesson by removing the need to figure out what the value is meant to be based on the tests.
Previous commits (9ca08b8f2b114b54cbdb (diff-ce1c232ff0ddaff909351bb84cb5bff423b5b9e04f21fd4db7ffe443e598e174)
2021-10-30 16:55:58 -06:00
1663a16ead
fix(traits1): rename test functions to snake case ( #854 )
...
Co-authored-by: zhangshaozhi <zhangshaozhi@ZhangshaozhideMacBook-Pro.local >
2021-10-18 13:57:12 +02:00
46c28d5cef
fix(move_semantics5): correct typo ( #857 )
2021-09-30 10:18:36 +02:00
bf33829da2
fix(structs3): remove redundant 'return' ( #852 )
2021-09-27 10:03:28 +02:00
c2ed98deb3
Merge pull request #781 from tlyu/advanced-errs
...
feature: advanced errors
2021-09-25 11:18:55 +02:00
abd6b70c72
feat: add advanced_errs2
...
New exercise to demonstrate traits that make it easier for other code
to consume our custom error types.
2021-09-25 11:18:23 +02:00
882d535ba8
feat: add advanced_errs1
...
New section and exercise to demonstrate the `From` trait for errors
and its usefulness with the `?` operator.
2021-09-25 11:18:21 +02:00
d75759e829
fix(move_semantics5): change &mut *y to &mut x ( #814 )
...
Instead of having to explain why
```rs
let mut x = 100;
let y = &mut x;
let mut z_owned = *y;
let z = &mut z_owned;
*y += 100;
*z += 1000;
```
and
```rs
let mut x = 100;
let y = &mut x;
let z = &mut *y;
*y += 100;
*z += 1000;
```
are different, you still get the point across about having only one mutable reference.
As it stands, this exercise does too much (dereferencing and having only one mutable reference), and by doing so confuses people.
Example of someone being confused by this:
<https://discord.com/channels/273534239310479360/273541522815713281/872689531428692040 >
2021-09-25 10:52:18 +02:00
0a11bad714
feat(quiz1): add default function name in comment ( #838 )
2021-09-21 10:43:44 +02:00
1c3beb0a59
fix(modules2): fix typo ( #835 )
2021-09-06 16:32:39 +02:00
dfd2fab4f3
feat(modules): update exercises, add modules3 ( #822 )
...
Co-authored-by: diannasoriel <mokou@fastmail.com >
2021-09-03 10:41:12 +02:00
96fc301764
chore(quiz1): revert wording
2021-08-26 10:30:18 +02:00
03131a3d35
fix(quiz1): Fix inconsistent wording ( #826 )
...
The second test expects the function to return 80 when there is an order of 40 apples, but the current wording implies returning 40 will pass as well
2021-08-24 10:48:51 +02:00
df25684cb7
fix(move_semantics5): Clarify instructions
2021-07-29 12:37:15 +02:00
8e313cffaa
Merge pull request #732 from apogeeoak/iterators5
...
chore(iterators5): Minor formatting improvements.
2021-07-09 12:24:42 +02:00
6948905716
Merge pull request #737 from ghost/correct-small-typo
...
Correct small typo in exercises/conversions/from_str.rs
2021-07-08 11:07:21 +02:00
d876649616
fix(quiz1): Updated question description ( #794 )
...
Co-authored-by: Rakshit Sinha <rakshit.sinha@oracle.com >
2021-07-07 22:18:33 +02:00
8774e47dc3
docs: Update collections README with HashMap link
2021-07-06 01:31:27 -07:00
e422ab1507
docs: Update exercise to chapter mapping for HashMap
2021-07-05 23:07:34 -07:00
2dc93cadda
fix(from_str, try_from_into): custom error types
...
Remove the use of trait objects as errors from `from_str` and
`try_from_into`; they seem to have caused a lot of confusion in
practice. (Also, it's considered best practice to use custom error
types instead of boxed errors in library code.) Instead, use custom
error enums, and update hints accordingly. Hints also provide
some guidance about converting errors, which could be covered
more completely in a future advanced errors section.
Also move from_str to directly after the similar exercise `from_into`,
for the sake of familiarity when solving.
2021-06-24 21:33:41 -05:00
a3ea37b76e
Merge pull request #771 from tlyu/iterators5-trait-tweak
...
fix(iterators5): derive Clone, Copy
2021-06-24 14:17:05 +02:00
ec63cadadb
Merge pull request #772 from tlyu/errors-rework
...
feature: improve error_handling exercises
2021-06-24 14:12:34 +02:00
b7ddd09fab
address review feedback
...
Adjust error text and naming to conform with best practices.
Use `map_err()` instead of `or()`. Wrap lower-level errors instead of
ignoring their details.
Also, don't "cheat" by bypassing the `new()` function in tests.
Fix a dangling reference in the try_from_into hints.
2021-06-09 23:27:53 -05:00
48ffcbd2c4
fix(variables5): confine the answer further
...
let mut number = 3; can lead to a correct answer, so the comment helps to direct the users to the intended answer.
2021-06-07 18:22:55 +08:00
68d3ac567c
feature: improve error_handling exercises
...
Add new exercises errors5 and errors6, to introduce boxed errors and
custom error enums more gently. Delete errorsn, because it tried to do
too much too soon.
2021-06-06 23:08:57 -05:00
50ab289da6
fix: rename result1 to errors4
...
Also put it in the ERROR HANDLING section where it probably belongs.
2021-06-06 23:08:54 -05:00
91fc9e3118
fix(iterators5): derive Clone, Copy
...
To allow more flexibility in solutions, derive `Clone` and `Copy`
for `Progress`.
2021-06-06 17:38:02 -05:00
1b85828548
fix: move_semantics5 hints
...
Improve the hints for move_semantics5, as well as the explanatory
comments in the code.
Previously, it was not clear what possible changes were allowed.
It seems that reordering the statements might be the intended solution.
The previous comment about not "adding newlines" doesn't make sense,
so treating it as "adding new lines" makes it more clear.
2021-05-22 22:09:58 -05:00
399ab328d8
feat: Add move_semantics5 exercise. ( #746 )
...
* feat: Add move_semantics5 exercise.
* feat: Add option3 exercise
* Address review comments. Fix typos, sentence formatting.
* Remove unwanted newline.
* Address review comments: make comment inline, fix format in print.
2021-05-17 14:10:40 +02:00
4d4fa77459
fix: remove trailing whitespaces from iterators1
2021-05-12 10:20:07 -05:00
3145794084
fix: add hints to generics1 and generics2 exercises
2021-05-11 14:50:05 -05:00
d9b69bd1a0
fix: remove trailing whitespace
2021-05-09 17:58:54 -05:00
9569c9a9e7
style(standard_library_types): stray line break
2021-04-29 23:31:26 +02:00
86cc85295a
fix: Correct small typo in exercises/conversions/from_str.rs
2021-04-27 21:11:40 +02:00
9b8de65525
fix(intro1): Add compiler error explanation.
2021-04-26 20:28:17 -04:00
650b1dee54
chore: Update quiz1.rs add explicit test for 40
2021-04-25 19:02:50 +02:00
21c9f44168
feat(intro): Add intro section.
2021-04-24 13:15:34 -04:00
7f0d2c2bf0
chore(iterators5): Minor formatting improvements.
2021-04-24 12:42:06 -04:00
4a384cae4a
docs(option): improve further information
2021-04-24 12:12:49 +02:00
249ad44cc0
docs(exercises): updated all exercises readme files
...
all exercises readme files now have a unified structure and a description
2021-04-23 19:54:31 +02:00
54804e344d
Merge pull request #721 from Zerotask/add-further-help-for-generics3
...
docs(generics): add bounds help
2021-04-23 15:05:00 +02:00
f253103a31
docs(generics): add bounds help
...
add help for bounds provided by the rust by example book
2021-04-22 22:11:04 +02:00
1120db57a6
docs(errors): add additional help for Result/Boxing
...
add additional help information provided by the rust by example book
2021-04-22 21:32:29 +02:00
81be404487
feat(arc1): Add more details to description and hint ( #710 )
...
Co-authored-by: bmacer <bmacer@cisco.com >
Co-authored-by: marisa <mokou@fastmail.com >
Co-authored-by: Roberto Vidal <vidal.roberto.j@gmail.com >
2021-04-21 14:50:03 +02:00
79cc657917
Merge pull request #646 from apogeeoak/iterator
...
Added iterators5.rs exercise.
2021-04-21 10:10:50 +02:00
9c88ea9126
Improved iterators5.rs explanation.
2021-04-20 18:55:04 -04:00
2b766ef9f9
Merge pull request #648 from apogeeoak/iterator2
...
Moved iterators2.rs errors out of tests.
2021-04-20 11:24:10 +02:00
bd3d9ac9d5
Merge pull request #649 from apogeeoak/iterator3
...
Enabled iterators3.rs to run without commented out tests.
2021-04-20 11:22:39 +02:00
6bd791f2f4
fix(structs): Add 5.3 to structs/README ( #652 )
...
Co-authored-by: Shao Yang Hong <shaoyang.hong@ninjavan.co >
2021-04-20 11:19:24 +02:00
b4de659438
fix(option2): Rename uninformative variables ( #675 )
...
Renaming uninformative names like `optional_value`, `value`, `optional_values_vec` and `value` helps users distinguish between the two parts of the task.
2021-04-20 11:18:05 +02:00
