The Magical Journey of this: Elusive Pointing In Java, the behavior of this is drastically different from other object-oriented languages. It is not fixed but depends on how the function is called.

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 ...

‘Higher-order functions’ is a fancy term for functions that take other functions as arguments or that return functions. Very powerful! Last week, I casually dropped the term “higher-order function” ...

In the past two columns, we’ve looked at higher-order functions and talked a little bit about the power of functional programming. So far, the concepts we’ve covered do little to indicate how powerful ...