JSFiddle - React, Tailwind, and code Playground

JavaScript

function MyClass() {};

MyClass.prototype.myName = function (){   
    console.log(getCallerName(), 'I am here');
};

MyClass.prototype.myOtherName = function (){   
    console.log(getCallerName(), 'I am here again');
};


function doMe() {
    console.log(getCallerName(), 'I am here in a named function');
};


function getCallerName() {
    try {
        throw new Error();
    } catch (e) {
        console.log(e.stack);
        var lines = e.stack.split('\n');
        // FF
        var ffMatch = /\b([a-zA-Z1-9\$_\.]*)@/.exec(lines[1]);
        if (ffMatch) {
            return ffMatch[1];
        }
        // IE 10+ and Chrome 
        var chromeMatch = /at (.*) /.exec(lines[2]);
        if (chromeMatch) {
            return chromeMatch[1];
        }
        return 'unknown function';
    }
}

var a = new MyClass();

a.myName();
a.myOtherName();
doMe();