javascript - arguments.callee.toString() and arguments.callee.name does not return function name

Question

I'm trying to get the name of the currently running function. From what I've read, this should be possible using:

(arguments.callee.toString()).match(/function\s+(\[^\s\(]+)/)

However, when I run this in Firefox and Safari (latest versions on Mac) the name is not returned.

console.log( arguments.callee ) returns the source of the function, but not the assigned name. arguments.callee.name returns an empty string.

My sample code is as follows:

var testobj = {
    testfunc: function(){
        console.log( (arguments.callee.toString()).match(/function\s+(\[^\s\(]+)/) );
    }
}
testobj.testfunc();

Answer 1

You declared an anonymous function with

function(){

You should declare it as

function testfunc(){

to get the name printed.