util._extend(target, source)
util._extend()
方法从未打算在内部的 Node.js 模块之外使用。社区无论如何都找到并使用了它。
¥The util._extend()
method was never intended to be used outside of internal
Node.js modules. The community found and used it anyway.
它已被弃用,不应在新代码中使用。JavaScript 通过 Object.assign()
提供了非常相似的内置功能。
¥It is deprecated and should not be used in new code. JavaScript comes with very
similar built-in functionality through Object.assign()
.