Kendo view model with ES5 properties

gistfile1.ts

/// <reference path="../Kendo/typescript/kendo.web.d.ts"/>
/// <reference path="../Scripts/typings/jquery/jquery.d.ts"/>

class ViewModel extends kendo.data.ObservableObject {

    private _text = "asd";

    public set theText(v: string) {
        if (this._text == v) return;
        this._text = v;
        this.trigger('change', { field: 'theText', value: v });
    }

    public get theText() {
        return this._text;
    }

    clicker = () => {
        this.theText = "HELLO USABLE BINDINGS";
    }

    constructor() {
        super();
        this.init(this);
    }
}