不写代码写什么



不写代码写什么

这个普通的例子已经很好的展现函数式编程的特性了，我不依赖外部的数据，我也不改变外部的数据，而是返回一个新的值给你。

在《编写可读代码的艺术》一书中，谈到了变量影响代码可读性和复杂度的三种原因：

  • 变量越多，就越难全部跟踪它们的

  • 变量的作用域越大，就需要跟踪它的动向

  • 变量改变得越频繁，就越难以跟踪它的当前值


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