let arnold = 'Arnold';
let code = 'Code';
let academy = 'Academy';
console.log([arnold, code, academy] = [code, academy, arnold]); //['Code', 'Academy', 'Arnold']
console.log([arnold, code, academy] = [code, academy, arnold]);//['Academy', 'Arnold', 'Code']
let [a, b, ,c] = [1, 2, 3, 4]
let {a, b, c} = {a:1, b:2, c:3}