JSFiddle - React, Tailwind, and code Playground

by shriek

HTML

<p data-bind="text:total()"></p>

JavaScript

function TestVM(){
    var self = this;
    self.x = ko.observable(4);
    self.y = ko.observable(3);
    
    self.total = ko.computed(function(){
        return self.x() + self.y();
    }, self);
}
myVM = new TestVM();
ko.applyBindings(myVM);