aem1k symmetry explanation

aem1k_symmetry.js

// I've passed the original symmetrical code through the Prettier
// Most of the lines do nothing but make code look symmetrical
// Still it's amazing :)

{
  0.0 - {} - 0
}
xXXx = wYYw = // 'alert(xXXx)'
  ([] + !!+[])[0 ** 0.0] + // 'a'
  [[]] + // ''
  ('' + !!+'')[0 - ~+!!+~-0] + // 'l'
  ([] + [] + []) + // ''
  (8 + {} + 8)[0 | (8 ** 0.8) | 0] + // 'e'
  ([] || []) + // ''
  ('' + (0 == 0) + '')[0 ** 0.0] + // 'r'
  [] + // ''
  '' + // ''
  [] + // ''
  (0 + {} + 0)[8 - !!-8] + // 't'
  ('' || '') + // ''
  ('(' + [] + ')')[0 + ~~+0] + // '('
  '' + // ''
  '' + // ''
  '' + // ''
  ['xXXx'][0 + ~~+0] + // 'xXXx'
  [''] + // ''
  ')YY('['' + ~~+''] // ')'
;[{}]
{
  {
    ;[]
  }
}

xx = AvvA = // 'constuctor'
  (0.8 + {} + 8)[8 || 0.8] + // 'c'
  ('' || '') + // ''
  ('o' || 'o')['' + ~~+''] + // 'o'
  [''] + // ''
  ('' + [8][8] + '')[0 ** 0.0] + // 'n'
  ('' + [] + '') + // ''
  ('xX' + !!+'Xx')[0 | (8 ** 0.8) | 0] + // 's'
  [[]] + // ''
  (0.8 + {} + 8)[8 + ~~+8] + // 't'
  ('' || '') + // ''
  ('' + [8 == 8] + '')[0 ** 0.0] + // 'r'
  [''] + // ''
  ('' + [8][8] + '')['' + ~~+''] + // 'u'
  '' + // ''
  '' + // ''
  '' + // ''
  (0.8 + {} + 8)[8 || 0.8] + // 'c'
  ([] + [] + []) + // ''
  (0 + {} + 0)[8 - !!-8] + // 't'
  [''] + // ''
  ('o' || 'o')['' + ~~+''] + // 'o'
  ('' + [] + '') + // ''
  ('' + [8 == 8] + '')[0 ** 0.0] // 'r'
;[, {}]
;[xx][AvvA][xx](wYYw)([] ** []) // ['constructor']['constructor']['constructor']('alert(xXXx)')(1)

// ['constructor'] returns array object
// ['constructor']['constructor'] here we get 'contructor' field of this array which is Array() function
// ['constructor']['constructor']['constructor'] then we get 'contructor' of Array function which is Function() function
// When we call Function with 'alert(xXXx)' argument it returns actual function which executes 'alert(xXXx)' line
// Then we call it :)