scope5.js

来自「源码JAVASCRIPT精粹」· JavaScript 代码 · 共 14 行

function parentFunction()
{
  var scopedVar = "available";
  var nestedFunction = function()
  {
    return scopedVar;
  }

  return nestedFunction();
}

var isAvailable = parentFunction();

alert("The scoped variable is: " + isAvailable);