What is the process for defining global type aliases in TypeScript?

One of the aliases I use is

type ReactMouseEvent = React.MouseEvent<HTMLDivElement, MouseEvent>

To implement this alias, I created a globals.d.ts file within the types folder of my project:

// in globals.d.ts
import React = require('react')
declare type ReactMouseEvent = React.MouseEvent<HTMLDivElement, MouseEvent>

Next, I adjusted the typeRoots setting in my tsconfig.json file:

{
    "compilerOptions": {
        "typeRoots": [
            "node_modules/@types",
            "./types"
        ]
    }
}

Despite these configurations, when attempting to use the code below, Visual Studio Code continued to raise errors about the missing name ReactMouseEvent. How can I resolve this issue?

Update: I also attempted an alternative method to define the type in a d.ts file:

import React = require('react')

declare global {
  type ReactMouseEvent = React.MouseEvent<HTMLDivElement, MouseEvent>
}

However, this approach did not yield positive results either.

Answer №1

For all of my coding endeavors, I store my declaration files in the src/ directory (with an "include" rule of ["./src/**/*"]). Surprisingly, everything operates smoothly without having to define any custom typeRoots settings within the tsconfig.json file.

It might be helpful for you to verify the other configurations within your tsconfig file. Ensure that you are properly including, rather than excluding, the necessary files.

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