class TLoadComplete{
    constructor( callbackFunc, frequency ){
        this.callback = callbackFunc || (()=>{ console.log("completed")});
        this.frequency = frequency || 500;
    }
 
    start(){
        if (this.started) return;
        this.started = true;
        let me = this;
        this.images = [...document.images];
        this.interval = setInterval(()=>{
            let result = me.images.filter(el => !el.complete).length == 0 && document.fonts.ready;
            if (result) {
                me.callback();
                console.log("completed");
                me.stop();
            }
        }, me.frequency)
    }
 
    stop(){
        clearTimeout(this.interval);
        this.started = false;
    }
}