连续赋值操作

[Sunny-117]

连续赋值操作

[veneno-o]

let a = { n: 1 }
let b = a

a.x = a = { n: 2 }

console.log(a.x) // => undefined
console.log(b.x) // => { n: 2 }

[yekezz]

这篇文章讲的很详细
https://segmentfault.com/a/1190000004224719