multiMapSingletonPairs - get key+value pairs where key only has one value [1036502]

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

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meta-for MultiMap also as MultiSetMap {
  static <A, B> LPair<A, B> multiMapSingletonPairs(MultiMap<A, B> mm) {
    new LPair<A, B> out;
    if (mm != null) for (A key : mm.keySet()) {
      var values = mm.get(key);
      if (l(values) == 1)
        out.add(pair(key, first(values)));
    }
    ret out;
  }
}

Author comment

Began life as a copy of #1004755

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Snippet ID:	#1036502
Snippet name:	multiMapSingletonPairs - get key+value pairs where key only has one value
Eternal ID of this version:	#1036502/5
Text MD5:	9db8b831ec4846921210c57519204ed0
Transpilation MD5:	e14a1aa8440336a3d0f839ea9b341f8b
Author:	stefan
Category:	javax
Type:	JavaX fragment (include)
Public (visible to everyone):	Yes
Archived (hidden from active list):	No
Created/modified:	2023-01-07 20:47:19
Source code size:	320 bytes / 11 lines
Pitched / IR pitched:	No / No
Views / Downloads:	76 / 121
Version history:	4 change(s)
Referenced in:	[show references]