This is a beta course, so its structure, chapters, and examples may continue to change.JavaScript 类和面向对象编程This article is being translated. Please check back soon. Previous JavaScript 数组和对象 学习 JavaScript 中的数组操作、对象属性和解构赋值Next JavaScript 异步编程 学习 JavaScript 中的回调函数、Promise、async/await 等异步编程概念