get30SWPeople.js

function get30SWPeople(params) {
  let people = [];
  const SWPromises = [
      fetch('https://swapi.dev/api/people/?page=1'),
      fetch('https://swapi.dev/api/people/?page=2'),
      fetch('https://swapi.dev/api/people/?page=3')
  ]
 return Promise.all(SWPromises)
  .then(ResponsesArr => {
      return Promise.all(
          ResponsesArr.map(data => data.json())
          ) 
  })
  .then(jsonDataArr => {
      people = jsonDataArr.reduce(
          (acc, data) => [...acc, ...data.results]
          , people)
      return people;
  })
}
get30SWPeople().then(people => {
  console.log(people)
  //do stuff with the people here. 😁
});