healthchecks_healthchecks/static/js/signal_form.js

$(function () {
    $("#id_number").on("change keyup", function () {
        $("#submit-btn").attr("disabled", true);
    });

    // Show a tooltip on the submit button only if it is disabled
    $("body").tooltip({ selector: "#submit-btn:disabled" });

    $("#signal-verify-btn").click(function () {
        $("#signal-verify-btn").attr("disabled", true);

        var url = this.dataset.verifyUrl;
        var token = $("input[name=csrfmiddlewaretoken]").val();
        $.ajax({
            url: url,
            type: "post",
            headers: { "X-CSRFToken": token },
            data: { recipient: $("#id_number").val() },
            success: function (data) {
                $("#verify-result").html(data);
                $("#submit-btn").attr("disabled", data.indexOf("alert-success") == -1);
                $("#signal-verify-btn").attr("disabled", false);
            },
        });
    });
});