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a guest May 25th, 2019 71 Never
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  1. // In this week's episode of "YOUR DOING IT WRONG"
  2.  
  3. void Main()
  4. {
  5.  
  6.     // The ** OLD ** keyword-heavy way to write a for loop.... nobody does this any more...
  7.     for (int i = 0; i < 12; i++)
  8.     {
  9.         Console.WriteLine(i);
  10.     }
  11.  
  12.     // WHY memorise all that custom syntax, that *only* applies to `for` statements.
  13.  
  14.     // MUCH better to have general principles that are used everywhere and just use those.
  15.  
  16.     //The NEW way to write a for loop... uses the proprietary fforr function... no keywords!
  17.     fforr(() => 0, i => i < 12, i => ++i, (i) =>
  18.     {
  19.         Console.WriteLine(i);
  20.     });
  21. }
  22.  
  23. public void fforr(Func<int> iCreator, Predicate<int> test, Func<int, int> incrementi, Action<int> doAction)
  24. {
  25.     var i = iCreator();
  26.     while (test(i))
  27.     {
  28.         doAction(i);
  29.         i = incrementi(i);
  30.     }
  31. }
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