how to access particular data in fetch api code example

Example 1: javascript fetch api post

fetch('https://example.com/profile', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
  	'foo': 'bar'
  }),
})
  .then((res) => res.json())
  .then((data) => {
    // Do some stuff ...
  })
  .catch((err) => console.log(err));

Example 2: fetch api template

//fetch api template
const fetchData=(inputs)=>{
fetch('https://example.com/api', {
    method: 'post',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify(inputs)
  })
  .then(function(response) {
    return response.json();
  })
  .then(function(data) {
    ChromeSamples.log(data.whatever);
  });
}