JavaScript 可重用函数

Question

我有两个具有相同逻辑的函数(例如:在控制台中打印多个串联元素)，但有一个特殊性。最简单的方法是指定参数的特殊性，如下所示:

function baseLogic (specific, general) {
  // ... many processes before here
  if(specific == "info") console.info(general)
  if(specific == "warn") console.warn(general)
}

// Calls
baseLogic("info", "foo")
baseLogic("warn", "bar")

但是，我想用函数来处理这种特殊性，而不是作为参数，如下所示:

function baseLogic (specific, general) {
  // ... many processes before here
  if(specific == "info") console.info(general)
  if(specific == "warn") console.warn(general)
}

function info(general) {
  baseLogic("info", general)
}

function warn(general) {
  baseLogic("warn", general)
}

// Calls
info("foo")
warn("foo")

问题是，例如，当我想添加/删除参数时，我需要在各处添加/删除它

有什么办法可以做得更好吗？

类似这样的事情:

function baseLogic (specific, general) {
  // ... many processes before here
  if(specific == "info") console.info(general)
  if(specific == "warn") console.warn(general)
}
info = baseLogic("info")
warn = baseLogic("warn")

// Calls
info("foo")
warn("bar")

提前致谢!

Answer 1

也许您正在寻找的是 curry 函数:

// no curry
const sum = (a, b) => a + b

// no curry usage
sum(3, 4)

// curry
const sum = a => b => a + b

// curry usage
sum (2)(1);

引用号:https://medium.com/front-end-weekly/javascript-es6-curry-functions-with-practical-examples-6ba2ced003b1