list of list of string to list of string csharp

Code Example - list of list of string to list of string csharp

                
                        input.SelectMany(l => l).Distinct().ToList();
                    
                
 

csharp list to string

                        
                                List<string> names = new List<string>() { "John", "Anna", "Monica" };
string result = string.Join(",", names.ToArray());
                            
                        
 

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