Indexed Iterables have incrementing numeric keys. They exhibit
slightly different behavior than Iterable.Keyed for some methods in order
to better mirror the behavior of JavaScript's Array, and add methods
which do not make sense on non-indexed Iterables such as indexOf.
Unlike JavaScript arrays, Iterable.Indexeds are always dense. "Unset"
indices and undefined indices are indistinguishable, and all indices from
0 to size are visited when iterated.
All Iterable.Indexed methods return re-indexed Iterables. In other words,
indices always start at 0 and increment until size. If you wish to
preserve indices, using them as keys, convert to a Iterable.Keyed by
calling toKeyedSeq.
Indexed Iterables have incrementing numeric keys. They exhibit slightly different behavior than
Iterable.Keyedfor some methods in order to better mirror the behavior of JavaScript'sArray, and add methods which do not make sense on non-indexed Iterables such asindexOf.Unlike JavaScript arrays,
Iterable.Indexeds are always dense. "Unset" indices andundefinedindices are indistinguishable, and all indices from 0 tosizeare visited when iterated.All Iterable.Indexed methods return re-indexed Iterables. In other words, indices always start at 0 and increment until size. If you wish to preserve indices, using them as keys, convert to a Iterable.Keyed by calling
toKeyedSeq.