JSFiddle - React, Tailwind, and code Playground
HTML
<button type="button">click</button>
JavaScript
var checkObject = function() {};
checkObject.prototype.checkName = function(){
};
checkObject.prototype.checkEmail = function() {
}
checkObject.prototype.checkPassword = function(){
alert(this.checkObject)
alert(this.checkEmail)
}
var a = new checkObject();
a.checkPassword();