What is the difference jQuery objects acquired dom dom objects and native

js native acquired dom is an object, an array is a collection of jQuery object array object, in fact, selected elements, so that they are two different types of objects are not equivalent

• Native DOM objects turn jQuery object

  var box = document.getElementById('box')
  var $box = $(box)

• jQuery objects go native DOM object

  var $box = $('#box')
  var box = $box[0]