Ben Harris 81173dd380 | ||
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.exercism | ||
.editorconfig | ||
HELP.md | ||
README.md | ||
Strain.cs | ||
Strain.csproj | ||
StrainTests.cs |
README.md
Strain
Welcome to Strain on Exercism's C# Track.
If you need help running the tests or submitting your code, check out HELP.md
.
Instructions
Implement the keep
and discard
operation on collections. Given a collection
and a predicate on the collection's elements, keep
returns a new collection
containing those elements where the predicate is true, while discard
returns
a new collection containing those elements where the predicate is false.
For example, given the collection of numbers:
- 1, 2, 3, 4, 5
And the predicate:
- is the number even?
Then your keep operation should produce:
- 2, 4
While your discard operation should produce:
- 1, 3, 5
Note that the union of keep and discard is all the elements.
The functions may be called keep
and discard
, or they may need different
names in order to not clash with existing functions or concepts in your
language.
Restrictions
Keep your hands off that filter/reject/whatchamacallit functionality provided by your standard library! Solve this one yourself using other basic tools instead.
Source
Created by
- @bressain
Contributed to by
- @ErikSchierboom
- @j2jensen
- @jwood803
- @robkeim
- @wolf99
Based on
Conversation with James Edward Gray II - https://twitter.com/jeg2