如何使您的复选框与您的 Jquery 功能一起使用？

Question

I have created 3 checkbox and i am struggling to make them to communicate with my Jquery button i have created to allow a user an option to select. If one is selected and other one both are, they must when button is clicked should download my feeds as CSV file. I have the logic below i want to share for clear understanding as to what exactly i want to achieve.

 $(document).ready(function() { $("#download").click(function() { window.location.href = 'https://api.thingspeak.com/channels/899906/feeds.csv?start=2019-11-12%2019:11:12&end=2019-11-13%2019:11:13'; }); });

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <div class="custom-control custom-checkbox"> <input type="checkbox" class="custom-control-input" id="temperature"> <label class="custom-control-label" for="temperature">Temperature</label> </div> <div class="custom-control custom-checkbox"> <input type="checkbox" class="custom-control-input" id="illuminance"> <label class="custom-control-label" for="illuminance">Illuminance</label> </div> <div class="custom-control custom-checkbox"> <input type="checkbox" class="custom-control-input" id="button-state"> <label class="custom-control-label" for="button-state">Button-State</label> <.---Downloading File using Jquery with Buttons----> <div class="form-group"><br> <div class="col-md-1.9 text-center"> <button id="download" name="download" class="btn btn-warning">Download</button><br> </div> </div>

Answer 1

You want to initiate the download if at least two checkboxes are checked?

In that case, try using this:

$(document).ready(function() {
    $("#download").click(function() {
        var count = 0;
        if ($('#temperature').prop('checked')) count++;
        if ($('#illuminance').prop('checked')) count++;
        if ($('#button-state').prop('checked')) count++;
        if (count > 1) {
            window.location.href ='https://api.thingspeak.com/channels/899906/feeds.csv?start=2019-11-12%2019:11:12&end=2019-11-13%2019:11:13';
        }
    });
});