Question: Where do helper and utility methods go?

[real-ashwin]

If I have a UserInfo component with UserInfoActions and UserInfoReducer.
The server returns user data such as

{
    fName: "first",
    lName: "last",
}

In which file do I put helper methods?
Example: getFormattedName() which returns Fname Lname in titlecase?
Should I put the method directly in the Component file or should I create a separate UserInfoHelper file for such methods?

Also, if getFormattedName() is to be shared among multiple components, where should it go?

[gaearon]

Redux has no opinion on the file structure of your application.

Should I put the method directly in the Component file or should I create a separate UserInfoHelper file for such methods?

Both ways work fine.

Also, if getFormattedName() is to be shared among multiple components, where should it go?

Anywhere you like, e.g. in the same folder as components, or in a special utils folder. This makes no real difference so please do as you like best.

[real-ashwin]

Thanks @gaearon for your response.

[tylerlong]

Please check my answer: https://stackoverflow.com/a/44742666/862862

Nowadays the best practice is to put the code into utils/ folder:

• src/
  • components/
    • ...
  • reducers/
    • ...
  • utils/
    • ...