The code uses a 'fetch()' API to make an HTTP POST request to post the JSON data to a server - in this case we are test-posting to 'JSONPlaceholder todos'.
Here is the JSON string sent to the server:
Each Employee object can also be added to a JSON Array as each employee is added:
The fetch API can also be used to make an HTTP GET request to receive JSON data for processing etc. Again, using 'JSONPlaceholder users'.
Employee at index [0]: