@arrows/array/src/keys.test.ts

Functional tools for JS arrays

import { keys } from "./index"

describe("Array keys", () => {
  it("provides functional wrapper for Array.prototype.keys", () => {
    const arr = ["one", "two", "three"]

    const result = keys(arr)
    const expected = arr.keys()

    expect(result).toEqual(expected)
  })
})