gistfile1.txt

    constructor(data: any,
                ajaxSettings: {
                    type?: string,
                    url?: string,
                    dataType?: string,
                    contentType?: string
                },
                callbacks?:{
                    onBeforeDataLoad?: () => void,
                    onDataLoadSuccess?: () => void,
                    onDataLoadError?: () => void,
                    onAfterDataLoad?: () => void
                }) {

        //Сохранение callback функций
        if (callbacks) {
            this.onBeforeDataLoad = callbacks.onBeforeDataLoad;
            this.onDataLoadSuccess = callbacks.onDataLoadSuccess;
            this.onDataLoadError = callbacks.onDataLoadError;
            this.onAfterDataLoad = callbacks.onAfterDataLoad;
        }

        //Установка настроек ajax
        this.ajaxSettings = ajaxSettings;

        //Установка первоначальных данных
        this.data = data;
    }