text: let a = 3, b = 4
  
  let o = {a, b}
  
  let {a:x, b:y} = o
  
  console.log('a=', a, 'b=', b, 'o=', o, 'x=', x, 'y=', y)
  
  let array = [a, b]
  
  let [c, d] = array
  
  console.log('c=', c, 'd=', d)
  
  // [a, b] = [b, a]
  
  let [ta, tb] = [a, b]
  
  console.log('c=', c, 'd=', d)
  
  console.log('ta=', ta, 'tb=', tb)
  