Extracting values from json objects

[simplest]

Hi,

I have just starting doing react and I have the following function which pass 4 values to the API to obtain data objects.

let ratesData = getRatesFromDates(startDateRate, endDateRate, baseCurrency, targetCurrency);
  async function getRatesFromDates(startDate, endDate, baseCurrency, targetCurrency) {
    try {
      let response = await fetch('https://api.exchangeratesapi.io/history?start_at=' +
                                    startDate + '&end_at=' + endDate + '&symbols=' + baseCurrency + ',' + targetCurrency);
      let jsonData = await response.json();
      return jsonData.rates;
     } catch(error) {
      console.error(error);
    }
  }
  console.log(ratesData);

In console, these are the data obtained.

I am wondering how I can loop through these data to make use and display them on the webpage or pass certain values to other functions?