Whitespace before type parameter list breaks parsing

[tobil4sk]

The syntax does not accept type parameters if there is a space before <.

This patch seems to solve the issue:

--- a/syntax/ts-common/type.vim
+++ b/syntax/ts-common/type.vim
@@ -26,7 +26,7 @@ syntax match typescriptGenericDefault /=/
 " class A extend B<T> {} // ClassBlock
 " func<T>() // FuncCallArg
 syntax region typescriptTypeArguments matchgroup=typescriptTypeBrackets
-  \ start=/\></ end=/>/
+  \ start=/</ end=/>/
   \ contains=@typescriptType
   \ nextgroup=typescriptFuncCallArg,@typescriptTypeOperator
   \ contained skipwhite

[HerringtonDarkholme]

This is done on purpose. func < T > (3) is a valid JavaScript and users should avoid adding undesirable spaces.

[tobil4sk]

func<T>(3) is also valid JavaScript syntax. The TypeScript compiler intentionally parses both as a generic call, regardless of spaces: https://github.com/Microsoft/TypeScript/issues/1121.