ts-is-defined v3.0.5

ts-is-defined

Typescript utilities

export function isDefined<T>(value: T): value is NonNullable<T> {
  return value !== undefined && value !== null
}

export function assertDefined<T>(
  value: T,
  message: string
): asserts value is NonNullable<T> {
  invariant(isDefined(value), message)
}