John Sonmez

Someone wrote a detailed analysis of why it was not easy to extend C# to support not-null, ie, print (string! msg), anyone have a link?

@migueldeicaza All solved at the langauge level by the F# design. nulls are abnormal except for C# types. Such an enormous time saver

@dsyme @migueldeicaza Are there good examples of how it's a big time saver? i.e. is it just the elimination of null checks?

@demisbellot @dsyme not ever having a nullref exception

@jsonmez How can moving null checks to the call sites result in less code? Sounds counter-intuitive, got examples showing less code?

@demisbellot So basically, you try to make things immutable and always initialized to a valid value. Null object pattern helps as well.

@jsonmez Unless it's guaranteed not to be null, i.e. I can see how you can get away with it in F# since guarantees are baked into the lang.