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< > BotCompany Repo | #1015727 // singletonOpt - synonym of getSingletonOpt - return single elemtent of list if length == 1 or null otherwise

JavaX fragment (include) [tags: use-pretranspiled]

Libraryless. Click here for Pure Java version (7648L/43K).

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static <A> A singletonOpt(Collection<A> l) {
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  ret l(l) == 1 ? first(l) : null;
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}
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static <A> A singletonOpt(A[] l) {
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  ret l(l) == 1 ? first(l) : null;
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}

Author comment

Began life as a copy of #1005177

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Snippet ID: #1015727
Snippet name: singletonOpt - synonym of getSingletonOpt - return single elemtent of list if length == 1 or null otherwise
Eternal ID of this version: #1015727/4
Text MD5: 900e5dccd8ef05d6aac3429dd0520f0d
Transpilation MD5: 9b605d3822dd6d11326dd1f59eac65b4
Author: stefan
Category: javax
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2022-04-02 18:05:41
Source code size: 160 bytes / 7 lines
Pitched / IR pitched: No / No
Views / Downloads: 428 / 523
Version history: 3 change(s)
Referenced in: [show references]