JSFiddle - React, Tailwind, and code Playground

by uedatakuya

HTML

<div data-bind="visible: isVisible">
    ほげ
</div>

<!-- ko if: isVisible -->
<div>ぴよ</div>
<!-- /ko -->

JavaScript

var vm = {
    isVisible: ko.observable(true)
};
ko.applyBindings(vm);
alert(document.querySelectorAll('div').length);
vm.isVisible(false);
alert(document.querySelectorAll('div').length);