JSFiddle - React, Tailwind, and code Playground

JavaScript

if (typeof String.prototype.startsWith != 'function') {
      // see below for better implementation!
      String.prototype.startsWith = function (str){
        return this.indexOf(str) == 0;
      };
    }
    
    var data = "Pankaj Garg";
    var input = 'Pankaj';
    if(data.startsWith(input))
    {
        alert("ok");
    }
    else
    {
        alert("not ok");
    }