ckEditor Usages

Get value using jQuery:

CKEDITOR.instances['content'].getData()

Reference:

Using ckEditor in bootstrap modal:

$.fn.modal.Constructor.prototype.enforceFocus = function () {
    var $modalElement = this.$element;
    $(document).on('focusin.modal', function (e) {
        var $parent = $(e.target.parentNode);
        if ($modalElement[0] !== e.target && !$modalElement.has(e.target).length
            // add whatever conditions you need here:
            &&
            !$parent.hasClass('cke_dialog_ui_input_select') && !$parent.hasClass('cke_dialog_ui_input_text')) {
            $modalElement.focus()
        }
    })
};

Reference: