Solve all Enumerables challenges #107
Open
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
jaybobo
reviewed
Jun 8, 2018
challenge.rb
Outdated
| end | ||
|
|
||
| def no_dogs_allowed(input) | ||
| input = input.dup |
There was a problem hiding this comment.
challenge.rb
Outdated
| end | ||
|
|
||
| def count_the_animals(input) | ||
| input.length |
There was a problem hiding this comment.
length isn't actually an enumerable but there's good reasons for familiarizing yourself with it and it's counterparts (eg. .size, .count) use cases.
see this article: http://batsov.com/articles/2014/02/17/the-elements-of-style-in-ruby-number-13-length-vs-size-vs-count/
https://ruby-doc.org/core-2.5.1/Enumerable.html#method-i-count
| end | ||
|
|
||
| def fetch_the_first_two(input) | ||
| input[0, 2] |
There was a problem hiding this comment.
challenge.rb
Outdated
| end | ||
|
|
||
| def fetch_CD_animals(input) | ||
| input.find_all { |animal| animal.start_with?("c", "d")} |
There was a problem hiding this comment.
challenge.rb
Outdated
| end | ||
|
|
||
| def fetch_the_dog(input) | ||
| input.find_all { |animal| animal == "dog" } |
There was a problem hiding this comment.
this works. there's also .select.
see: https://ruby-doc.org/core-2.5.1/Enumerable.html#method-i-select
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
@jaybobo