TypeScript 2.0 beta non-nullable types

by DotNetNerd 13. July 2016 07:19

tsOne of the nice features of functional programming languages like F# is the lack of null. Not having to check for null every where makes code a lot less errorprone. As the saying goes "What can C# do that F# cannot?" NullReferenceException". Tony Hoare who introduced null references in ALGOL even calls it his billion-dollar mistake. The thing is that although this is quite a known problem, it is not trivial to introduce non nullable types into an existing language, as Anders Hejlsberg talked about when I interviewed him at GOTO back in 2012.

With version 2.0 of TypeScript we do get non-nullable types, which has been implemented as a compiler switch --strictNullChecks. More...

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My name is Christian Holm Diget, and I work as an independent consultant, in Denmark, where I write code, give advice on architecture and help with training. On the side I get to do a bit of speaking and help with miscellaneous community events.

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