Michael Lakerveld Lakerfield

## InExpression.MD

      
        
          
            
              
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                Lakerfield
                / InExpression.MD
            
            
              Created
              October 19, 2022 14:12
                — forked from bartdesmet/InExpression.MD
            
              
                Roslyn workshop (Techorama) - Add a new `in` expression to C#
              
          
        
      
        
  
      
    Add a new in expression to C#

Goals

In this workshop, we'll add a new in expression to C#, with example use cases shown below:
x in 1..10     // x >= 1 && x < 10
'a' in "bar"   // "bar".IndexOf('a') >= 0   -or-   "bar".Contains('a')
x in xs // xs.Contains(x)