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Question: table membership

Question:table membership

Anthrazit 710 Maple
member value
November 29 2020
1

The member command allows testing, if a value is in a table.

But is it possible to check if the index is used, not the value?

L["hello"] := "funny"

"funny"

 (1)

member("hello", L)

false

 (2)

member("funny", L)

true

 (3)

``

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