Node now supports Regexp hasIndices -- typescript does not.

[BobFrankston]

Bug Report

🔎 hasIndices

Node 16 supports indices, TypeScript does not.

🕗 Version & Regression Information

When I discovered the feature in Node 16

⏯ Playground Link

 /(a)/d.exec('a').indices

🙁 Actual behavior

In Node it works

WIth Typescript, it is flagged as an error

🙂 Expected behavior

New features. await support in ESNext.

[JoshuaWise]

I'm also needing this feature.

[nickserv]

As a workaround, I've found these declarations helpful:

declare global {
  interface RegExpIndicesArray extends Array<[number, number]> {
    groups?: {
      [key: string]: [number, number]
    }

    0: [number, number]
  }

  interface RegExpMatchArray {
    indices?: RegExpIndicesArray
  }

  interface RegExpExecArray {
    indices?: RegExpIndicesArray
  }

  interface RegExp {
    readonly hasIndices: boolean
  }
}