The default “recurse depth” of console.dir is 2. This is rarely what I want.

Consider the following contrived example.

const person = {
  fullName: {
    given: 'John',
    family: 'Doe',
  },
  visited: [
    {
      place: 'Paris',
      country: {
        label: 'France',
        code: 'FR',
      },
    },
    {
      place: 'Nha Trang',
      country: {
        label: 'Viet Nam',
        code: 'VN',
      },
    },
  ],
}

By default, console.dir stops short of expanding the country object.

console.dir(person)

// Output
{
  fullName: { given: 'John', family: 'Doe' },
  visited: [
    { place: 'Paris', country: [Object] },
    { place: 'Nha Trang', country: [Object] }
  ]
}

Fix this by specifying the depth option.

console.dir(person, { depth: Infinity })

// Output
{
  fullName: { given: 'John', family: 'Doe' },
  visited: [
    { place: 'Paris', country: { label: 'France', code: 'FR' } },
    { place: 'Nha Trang', country: { label: 'Viet Nam', code: 'VN' } }
  ]
}