local-vars.js

来自「这是《JavaScript学习源代码》一书的源代码」· JavaScript 代码 · 共 22 行

//a function to display two local variables
function call_alert()
{
  var str = "";
  str = str + first_var();
  str = str + second_var();
  alert( str );
}

//a function to return a stored string
function first_var()
{
  var local_var = "Fantastic ";
  return local_var;
}

//another function to return a stored string
function second_var()
{
  var local_var = "JavaScript!";
  return local_var;
}