你如何在JavaScript中找到调用函数？ [英] How do you find out the caller function in JavaScript?

问题描述

function main()
{
   Hello();
}

function Hello()
{
  // How do you find out the caller function is 'main'?
}

有没有办法找出调用堆栈？

Is there a way to find out the call stack at all?

推荐答案

function Hello()
{
    alert("caller is " + Hello.caller);
}

请注意，此功能为非标准，来自 Function.caller ：

Note that this feature is non standard, from Function.caller:

非标准

功能是非标准的，不符合标准。不要在面向Web的生产站点上使用它：它不适用于每个用户。实现之间可能存在很大的不兼容性，并且行为可能在将来发生变化。

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

---

以下是2008年的旧答案，现代Javascript不再支持：

---

The following is the old answer from 2008, which is no longer supported in modern Javascript:

function Hello()
{
    alert("caller is " + arguments.callee.caller.toString());
}

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