JSFiddle - React, Tailwind, and code Playground

JavaScript

var tryFun = function(obj) {
        var callerFunction =this.name;
        alert(obj +" calling function "+callerFunction);
        
    };

function first() {
    this.name="first";
        tryFun.call(this,"akash");
    }

function second() {
    this.name="second";
        tryFun.call(this,"akash");
    }
    
first();
second();