DmitrySmirnov2007

const data = {}; 
const $inputs = $('.js-input input[name^=params]:nth-child(odd)');	

$inputs.each(function() {
  const $first = $(this); 
  const $second = $first.next(); 
  const regexp = /\[(\d+)\]\[(.+?)\]/; 
  
  const [, value, name] = $first.attr('name').match(regexp); 
  const [,, id] = $second.attr('name').match(regexp);
  data[value] = {
    [name]: $first.val(),
    [id]: $second.val()
  };
});