SelectFirst

可用

Returns the first element satisfying a predicate.

形式

SelectFirst[data, crit]

SelectFirst[data, crit -> prop]

SelectFirst[data, crit, default]

SelectFirst[crit]

已驗證的範例SelectFirst[{1, 2, 3, 4}, # > 2 &] → 3 SelectFirst[<|a -> 1, b -> 4, c -> 9|>, # > 3 &] → 4

在 Qurak 上執行搜尋參考文件

主題

Computation With Structured Datasets - Selections and Transformations
Elements Of Lists - Finding Sublists
Function Composition And Operator Forms - Functions with Operator Forms
New In100 Alphabetical Listing - S
New In100 Core Language And Structure - Finding Elements »

相關

Select FirstCase FirstPosition First Take Drop Reap Pick GatherBy GroupBy MatchQ StringMatchQ

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