I am first time using Async/Await in JS so I am confused little bit. I need to fetch JSON object from test API and store it somehow into global variable so I can use it outside async function, tried many solutions found on google but whatever I tried I am getting undefined, empty array or in most cases - Promise {}

My code currently looks like this:

let myArray = [];

async function fetchExam(id) {
  try {
      const response = await fetch('https://jsonplaceholder.typicode.com/posts', {
          method: 'GET',
          credentials: 'same-origin'
      });
      const exam = await response.json();
      return exam;
  } catch (error) {
      console.error(error);
  }
}

async function renderExam(id) {
  const exam = await fetchExam(id);
  console.log(exam);
}

renderExam()
console.log(renderExam())

I just want to assign JSON object hold in variable exam - to array called myArray. Last line returns Promise {} and console.log in renderExam function returns valid JSON. So, I need that JSON outside of async functions.