React create constants file

Question

How to create constants file like: key - value in ReactJs,

ACTION_INVALID = \"This action is invalid!\"

and to use that in other components

Answer 1

You can simply create an object for your constants:

const myConstClass = {
    ACTION_INVALID: "This action is invalid!"
}

And then use it.

If you are bundling, you can export this object and then import for each component file.