上下文绑定的困扰 箭头函数最显著的特点是不绑定自身的 this，而是继承外部作用域的 this 值。这在某些情况下可以简化代码，但在其他情况下却可能导致难以预料的错误。例如，在对象方法中，箭头函数无法正确绑定到对象的上下文，导致 this.data ...
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JavaScript in 100 Seconds: The Ultimate Crash Course
A lightning-fast crash course on JavaScript, the world’s most popular programming language. From its 1995 origins as Mocha in Netscape to powering front-end apps, Node.js servers, mobile apps, and ...
Object is the root object of all prototypes in JavaScript. Aside from providing the foundation for the JavaScript object model, Object imparts important methods such as toString() and assign(). Every ...
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