Nothing

可用

Element that disappears from lists

形式

Nothing

Nothing[…]

已驗證的範例{a, b, c, d} /. c -> Nothing → {a, b, d}{a, b, Nothing, c, d, Nothing} → {a, b, c, d}{{a, b, Nothing}, {c, d}, Nothing} → {{a, b}, {c, d}}

在 Qurak 上執行搜尋參考文件

主題

Elements Of Lists - Finding Sublists
List Manipulation - Elements of Lists »
New In102 Alphabetical Listing - N
Rearranging And Restructuring Lists - Sequence-Oriented Operations

相關

DeleteCases Delete Select Sequence Missing None Null List Association DeleteDuplicates TakeList Append

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