has

const user = {
  name: "Amir",
  age: 22,
};

has(user, "name");
// true

has(user, "email");
// false

const parent = {
  name: "Amir",
};

const user = Object.create(parent);

has(user, "name");
// false

const parent = {
  role: "admin",
};

const user = Object.create(parent);

has(user, "role");
// false

const data = {
  value: undefined,
};

has(data, "value");
// true

const data = {
  value: null,
};

has(data, "value");
// true

const id = Symbol("id");

const user = {
  [id]: 123,
};

has(user, id);
// true

const data = {
  1: "one",
};

has(data, 1);
// true

const data = {
  count: 0,
  active: false,
  name: "",
};

has(data, "count");
// true

has(data, "active");
// true

has(data, "name");
// true