怎么循环对象，打印出对象本身的字符串

Question

var a = {a:1,b:2}var b = {a:2,b:3}[a,b].forEach(key => {    console.log(key)    })可能表述不是很清晰 补上一个图片

Answer 1

[a, b].forEach(key => {

  console.log(JSON.stringify(key))

})