The 'axios' library, having carefully studied api, did not manage to write data to the request body (body) how to do this correctly?

Question

JavaScript

Chrome browser (pos. version)
this method does not work:
var params = new URLSearchParams();
params.append('param1', 'value1');
params.append('param2', 'value2');
axios.post('/foo', params);

Answer 1

var params = new FormData();
params.append('param1', 'value1');
params.append('param2', 'value2');
axios.post('/foo', params);