TypeScript Language Quick Reference

Data Types in TypeScript

Access Modifier

  • Any keyword is similar to Var keyword in JavaScript


Arrow Function

  • TypeScript contains type information for standard JavaScript objects, and using Type Definitions we can refer or get the type information for the external libraries.


  • let has block scope and var has function scope.

Now let us replace var with let keyword, we get an error as shown below


For loop


Abstract Class




Triple-slash directive to refer other files

Meanwhile check out the new features added as part of 3.5 release.


Hope it helps..

Author: Nishant Rana

I love working in and sharing everything about Microsoft.NET technology !

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