Welcome to the Lounge

• Intellisense sometimes slows down the Visual Studio editor, some other times stops working completely
  
• Syntax highlight is very basic, e.g. there is no special color for type names, or other semantic elements
  
• I really hate the ": type" syntax, it made me remember of old pascal days. You can get used to it, but you keep asking WHY??
  
• Autocompletion works only with the tab or enter key (and not with other symbols like (,= as in C#)
  
• class implementation lacks all the important features: operator overloads, extension methods and all the rest
  
• I found that comparing two equal "Date" variables with "==" (and not "===") results in false! Ok, it's due to JavaScript but that's horrible.
  
• Sometimes the compiler exits with an error without telling you what the error is, just "tsc.exe exit code 1".
  
• When generating a single global .js file, the compiler doesn't handle class inheritance (what class comes first), so you have to stick with multiple file only.
  
• Within a class, you have always to refer to "this", it's not optional like in C#. Sometimes it's annoying.
  
• Found myself often going to CodePlex and discovering it's a known issue
  

• debug directly within Visual Studio (break points and all the rest)
  
• has import types for many javascript libraries (DefinitelyTyped)
  
• Compared to C#, the dynamic syntax is much nicer for objects (no "new" keyword) and arrays
  
• I like how interfaces are handled and also the "optional" members (though I dislike the "name?" syntax)
  

Live long and prosper