Javascript 函数 Inner/Outer/Variable 作用域

Question

我已阅读 MDN:Scope 文档和其他资源，但感觉真的卡住了。

var funkyFunction = function() {
  return function() {
    return "FUNKY!"
  }
}

// We want to set theFunk equal to "FUNKY!" using our funkyFunction.
// NOTE: you only need to modify the code below this line.

var theFunk = funkyFunction()
theFunk()

Answer 1

funkyFunctionreturns一个函数。您需要立即调用该函数，以便它 returns "FUNKY!" 并分配给 theFunk:

var funkyFunction = function() {
  return function() {
    return "FUNKY!"
  }
}

// We want to set theFunk equal to "FUNKY!" using our funkyFunction.
// NOTE: you only need to modify the code below this line.

var theFunk = funkyFunction()();
console.log(theFunk);