JSFiddle - React, Tailwind, and code Playground

HTML

<div data-bind="click: clickMe('ok1')">
    <h1>Emplyee details</h1>
    <p>This is test</p>    
</div>

<div data-bind="click: clickMe('ok2')">
    <h1>Emplyee details</h1>
    <p>This is test</p>    
</div>

JavaScript

var ViewModel = function(){
    var self = this;
    self.clickMe = function(url){   
        //This function is automatically getting called 
        //when page loads.
        alert(url);
    }
}
ko.applyBindings(new ViewModel());