Question

请帮我解决以下问题。

var test = new Object();
test.testInner = new Object();

test.testInner.main = function ()
{
   Hello();
}

function Hello()
{
  /**** Question: currently I am getting blank string with below code,
   **** Is there any way to get function name as "test.testInner.main" over here? */
  console.log(arguments.callee.caller.name);
}
test.testInner.main();

Answer 1

test.testInner.main引用了anonymous（无名称）功能。您可以通过为其指定名称来获取名称。修改后的代码：

var test = new Object();
test.testInner = new Object();

test.testInner.main = function main()
{
   Hello();
}

function Hello()
{
  /**** Question: currently I am getting blank string with below code,
   **** Is there any way to get function name as "test.testInner.main" over here? */
  console.log(arguments.callee.caller.name);
}
test.testInner.main();

jsfiddle

Answer 2

您可以在Javascript中设置函数的上下文。

function hello() { 
    console.log(this);
}
some.other.object = function() {
    hello.call(this, arguments, to, hello);
}

这将是hello（）中的some.other.object。

在您的示例中，调用者是main，并且它没有name属性，因为它是匿名的。就像这里：Why is arguments.callee.caller.name undefined?

此外，参数已弃用，因此不应使用。

在JS函数中获取调用者名称

2 个答案: