How do I use a piece of script without refreshing page in Ember

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C#

ASP.NET

Hey guys, I want this code to be called when a date is selected in a SPA with ember, what's happenning is that this will only be called if I refresh the page, how can I call it without refreshing page?

$(document).ready(function () {
    var event = new Date();
    var arrival = new Date();
    var departure = new Date();
    var departureFlight = new Date();
    var returnFlight = new Date();

    event = $('#inputEventStart').data('date');
    arrival = $('#inputArrival').data('date');
    departure = $('#inputDeparture').data('date');
    departureFlight = $('#inputFlDeparture').data('date');
    returnFlight = $('#inputFlReturn').data('date');

    if (arrival < event) {
        alert("Arrival date must be after the event!");
        sender._textbox.set_Value('');
    }
    if (departure > event) {
        alert("Departure date must be before the event!");
        sender._textbox.set_Value('');
    }
    if (returnFlight < departureFlight) {
        alert("Return flight must be after flight departure");
        sender._textbox.set_Value('')
    }
});