How to find object member name using regex

Question

function myname()
{
Console.log(arguments.callee.toString().match(/function ([^\(]+)/)[1]);
}

this print myname in console. but I have to print this

myname: function() {
Console.log(arguments.callee.toString().match(/function ([^\(]+)/)[1]);
}

which is throwing an error. Is there a way to print myname from problem defined above. I have to call it from inside only.

james emanon · Accepted Answer · 2016-03-28 06:24:53Z

2

Are you sure you meant to use ":", and not "="

var myname = function myname() {
console.log(arguments.callee.toString().match(/function ([^\(]+)/)[1]);
}

this works.

or did you mean this?

var myObj = {
  myname: function myname() {
    console.log(arguments.callee.toString().match(/function ([^\(]+)/)[1]);
  }
}

myObj.myname()

or you can try this, quick n' dirty. You can make it more robust: There are limitations to this usage.

function findKey(val) {
   for (v in myObj) {
     if( myObj[v].toString() === val) {
       return v
     }
   }
}

var myObj = {
  myname: function() {
    console.log(findKey(arguments.callee.toString()));
  }
}

myObj.myname()

edited Mar 28, 2016 at 6:24

answered Mar 28, 2016 at 5:55

james emanon

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2 Comments

Ratish Over a year ago

var myObj = { myname: function () { console.log(arguments.callee.toString().match(/function ([^(]+)/)[1]); } } myObj.myname();

james emanon Over a year ago

I modified my answer with a workaround, BUT - caveat: it works of a different premise. So, it might not be what you need.

Praveen Puglia · Accepted Answer · 2016-03-28 06:04:21Z

2

myname: function() {
  console.log(arguments.callee.toString().match(/function ([^\(]+)/)[1]);
}

In above code, myname is not the name of the funciton, it is the name of property that points to an anonymous function.

If you want the name of the function, you will have to give one. So, for example

var a = {
   myname:function myname() 
     {  
       console.log(arguments.callee.toString().match(/function ([^\(]+)/)[1]);
     }
};
a.myname();

this will print myname.

For some more information read this. - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/arguments/callee

edited Mar 28, 2016 at 6:04

Praveen Puglia

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answered Mar 28, 2016 at 5:57

gurvinder372

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