30-seconds-of-code/snippets/serializeForm.md

serializeForm

Encode a set of form elements as a query string.

First we transform the form into FormData, then we convert it into an array and from the array we collect an query string

const serializeForm = form =>
  Array.from(new FormData(form), field => field.map(encodeURIComponent).join('=')).join('&')

serializeForm(document.querySelector('#form')) // email=test%40email.com&name=Test%20Name