Issue #19839 has been updated by nobu (Nobuyoshi Nakada). shouichi (Shouichi Kamiya) wrote in #note-19:
Shouldn't `none?` handle empty ranges? Currently, it raises an error.
```
(...-Float::INFINITY).none? (irb):1:in `each': can't iterate from NilClass (TypeError)
If `none?` handles empty ranges, then `overlap?` can return false when one of the ranges is empty.
It's for `nil`, that means begin-less range. ---------------------------------------- Feature #19839: Need a method to check if two ranges overlap https://bugs.ruby-lang.org/issues/19839#change-104657 * Author: shouichi (Shouichi Kamiya) * Status: Closed * Priority: Normal ---------------------------------------- It would be convenient to have a method that checks if two ranges overlap. For example, ``` (0..10).overlap?(5..15) #=> true (0..10).overlap?(20..30) #=> false ``` -- https://bugs.ruby-lang.org/