JS【详解】运算符/操作符 (解构运算符,对象操作符,in,void 操作符,typeof 运算符, instanceof 运算符,赋值运算符,比较运算符,逻辑运算符,三元运算符,运算符的优先级)
展开运算符 ... …rest
对象解构
const user { name: Tom, age: 20, sex: male }
const { name, ...rest } user
console.log(name) // Tom
console.log(rest) // {age:20, sex:male}数组解构
const arr [1,2,3,4]
const [a, b, ...rest] arr
console.log(rest) // [3,4…