JSFiddle - React, Tailwind, and code Playground
HTML
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">
JavaScript
var boolarray = [true,true,true,true,true,true,true,true,true];
alert( boolarray.every(Boolean) );