The some() method tests whether any of the elements in the array pass the test implemented by the assigned function.

some.ts

const age_user = [
  {
    name: "Jane Dow",
    age: 39,
  },
  {
    name: "John Doe",
    age: 39,
  },
  {
    name: "Rebecca Flex",
    age: 16,
  },
];

const authorized_user = (valueGet) => valueGet.age >= 18;
const adduct_only = age_user.some(authorized_user);
console.log(adduct_only);