Type Alias TransformCallback

TransformCallback: (
    node: Expression,
    parent: Expression | null,
    key: string | null,
    index: number | null,
) => Expression | undefined | null

Transform callback - returns new node or undefined to keep original

Type Declaration

- (
      node: Expression,
      parent: Expression | null,
      key: string | null,
      index: number | null,
  ): Expression | undefined | null
- Parameters
  - node: Expression
  - parent: Expression | null
  - key: string | null
  - index: number | null
  Returns Expression | undefined | null