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 ...

First, the most significant feature of arrow functions is that they do not bind their own this, but inherit the this value from the outer scope. At first glance, this may seem like an advantage, but ...

Although many users are satisfied with Rust build performance, a significant fraction of users report that slow builds and rebuilds in several common workflows are a ‘big problem’ for them.

大家都承诺“让 PHP 现代化/企业级”，可框架盖不住语言的地基。 Laravel 的“成功学”尤其说明问题：它基本是把 Rails（2005 年） 的理念移植过来。“现代”如果等于复刻二十年前，那叫跟随，不叫引领。