Update the levenshtein distance method in guides. #15955
Merged
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Outdated suggestions cannot be applied.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.
Copied from https://github.com/rails/rails/blob/master/railties/lib/rails/generators.rb#L258-L290.
Why I want to update? I update this because the current implementation has wrong result, if you copy this code into console:
And type
distance 'kitten', 'sitting'
, the result is2
, which is wrong. It should be3
.This kitten and sitting example is from wikipedia.