How to find specific property in objects without name in array

I have an API whose response looks like this (notice that it is objects without name in array):

{
 offers: [
  {
   sticker: null,
  },
  {
   sticker: null,
   score: "67",
  },
  {
   sticker: null,
  },
  {
   sticker: null,
  },
  {
   sticker: null,
   score: "70",
  }
 ]
}

How to check if the property score exists in this API response? I tried using

expect(resp.body.offers.some((offer: any) => offer.score !== undefined && typeof offer.score === "string")).to.be.true;

and many other ideas I had but nothing works. It will always throw error expected false to be true.

Your assertion is actually passing (according to the code you posted), so it looks like the response is the offers array

const response = {
  offers: [
    {
      sticker: null,
    },
    {
      sticker: null,
      score: "67",
    },
    {
      sticker: null,
    },
    {
      sticker: null,
    },
    {
      sticker: null,
      score: "70",
    }
  ]
}

// original assertion passes
expect(response.offers.some(offer => {
  return offer.score !== undefined && typeof offer.score === "string"}
), 'original assertion passes').to.be.true

Cypress lodash is really useful for parsing object lists, here's a few examples:

const score67 = Cypress._.find(response.offers, {score: "67"})
expect(score67).not.to.be.undefined

const score68 = Cypress._.find(response.offers, {score: "68"})
expect(score68).to.be.undefined

const firstWithScore = Cypress._.find(response.offers, 'score')
expect(firstWithScore.score).to.be.a('string')

const scores = Cypress._.flatMap(response.offers, (offer) => offer.score).filter(Boolean)
expect(scores).to.deep.equal(['67', '70'])
expect(scores.every(s => typeof s === 'string')).to.eq(true)