Can typescript export a function

Question

Is it possible to export a simple function from a typescript module   This isn t compiling for me   module SayHi       export function         console log  Hi          new SayHi      This workitem seems to imply that you cannot but doesn t flat out say it  Is it not possible

User · Answer

In my case I m doing it like this    module SayHi       export default      gt    console log  Hi          new SayHi

User · Answer

If you are using this for Angular  then export a function via a named export  Such as   function someFunc      export   someFunc as someFuncName     otherwise  Angular will complain that object is not a function

User · Answer

To answer the title of your question directly because this comes up in Google first   YES  TypeScript can export a function   Here is a direct quote from the TS Documentation       Any declaration  such as a variable  function  class  type alias  or interface  can be exported by adding the export keyword    Reference Link

User · Answer

It s hard to tell what you re going for in that example  exports   is about exporting from external modules  but the code sample you linked is an internal module   Rule of thumb  If you write module foo          you re writing an internal module  if you write export something something at top-level in a file  you re writing an external module  It s somewhat rare that you d actually write export module foo at top-level  since then you d be double-nesting the name   and it s even rarer that you d write module foo in a file that had a top-level export  since foo would not be externally visible    The following things make sense  each scenario delineated by a horizontal rule         An internal module named SayHi with an exported function  foo  module SayHi       export function foo            console log  Hi               export class bar           N B  this line could be in another file that has a     lt reference gt  tag to the file that has  module SayHi  in it SayHi foo    var b   new SayHi bar        file1 ts     This  file  is an external module because it has a top-level  export  export function foo         console log  hi       export class bar       file2 ts     This file is also an external module because it has an  import  declaration import f1   module  file1    f1 foo    var b   new f1 bar        file1 ts     This will only work in 0 9 0   This file is an external    module because it has a top-level  export  function f       function g       export     alpha  f  beta  g      file2 ts     This file is also an external module because it has an  import  declaration import f1   require  file1    f1 alpha       invokes f f1 beta       invokes g

[syntax] Can typescript export a function?

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