JSFiddle - React, Tailwind, and code Playground

by shriek

HTML

<input type="number" data-bind="value: saved_value, event: { change: value_changed }"/>

JavaScript

function vm(){
    var self = this;
    self.saved_value = ko.observable(20);
    self.value_changed = function(){
        console.log("called...");
    };
}

ko.applyBindings(new vm());