Type Definitions
When assigning a type to a variable added to process.env
types/global.d.ts
declare namespace NodeJS {
interface Process {
env: ProcessEnv
}
interface ProcessEnv {
NODE_ENV: string
}
}When assigning variable types to window and document objects
types/global.d.ts
export {}
declare global {
// Add window object variable type
interface Window {}
// Add document object variable type
interface Document {}
}