javascript - 函数内如何知道调用它的函数的名称?

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Release: 2016-06-06 20:37:08
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如:

<code>function a(){
    b();
}
function b(){
    console.log(a)
}
</code>
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a()不向b()传值的情况下,函数b()如何知道调用它的是a()
js或者php都想知道有没有这种方法

回复内容:

如:

<code>function a(){
    b();
}
function b(){
    console.log(a)
}
</code>
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Copy after login

a()不向b()传值的情况下,函数b()如何知道调用它的是a()
js或者php都想知道有没有这种方法

js:arguments.callee.caller

在javascript的函数内,arguments.callee是这个函数本身,而函数的caller则是这个函数的调用者(函数的调用者只有函数调用期间/函数内部才存在)。

PHP的话用debug_backtrace

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