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TIL Ruby String#split handles trailing / leading occurrences differently.
"foo.bar.".split('.')
# => ["foo", "bar"]
".foo.bar".split('.')
# => ["", "foo", "bar"]
Implicitly chomping the trailing occurrence is actually quite nice. Although, a bit surprised that it doesn't also ignore/omit leading occurrences?
@postmodern This feels like a bug, but I haven't figured out why, yet. It smacks of the stuff we laugh at JS about
@j_s_j @postmodern as documentation mention that: "As seen above, if limit is nil, trailing empty substrings are not returned; the same is true if limit is zero", it seems like a feature. https://ruby-doc.org/3.3.6/String.html#method-i-split
And now I wonder if
('.' * 1000).split('.', -1).first(3)
will create those 1k empty substrings...
@postmodern
there is more:
"foo.bar.".split('.', -1)
=> ["foo", "bar", ""]