JSFiddle - React, Tailwind, and code Playground

JavaScript

if (!String.prototype.startsWith) {
    Object.defineProperty(String.prototype, 'startsWith', {
        enumerable: false,
        configurable: false,
        writable: false,
        value: function (searchString, position) {
            position = position || 0;
             return this.indexOf(searchString, position) === position;
        }
    });
}


var str = "Pankaj Garg";
 
alert(str.startsWith("Pankaj"));   // true
alert(str.startsWith("Garg"));     // false
alert(str.startsWith("Garg", 7));