JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-app ng-controller="test">
    <input id="i" type="text" ng-model="val" style="width: 500px"> {{val}}
</div>

JavaScript

function test($scope) {
    $scope.val = 'value from controller';
}

setInterval(function () {
    document.getElementById('i').value += '.';
}, 1000);