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An adventure in sparse arrays (remysharp.com)
18 points by fagnerbrack 65 days ago | hide | past | web | favorite | 1 comment

Observation: The way JS handles "holes" in sparse arrays is similar to how Lua resolves non-existent table entries to nil. This can be interesting when people don't know the difference between pairs, ipairs and for 1, #tbl iterations, when the table contains a nil value and the table indexing (index or key) may be unknown.

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