attributeChangedCallback(name, oldVal, newVal) {
        if (oldVal !== newVal) {
            switch(name) {
                case 'label-title':
                    this.labelTitle = newVal
                    break;
                case 'label-description':
                    this.labelDescription = newVal
                    break;
            }
        }
    }
// To do when a attribute changed
To do when a attribute changed
To do when a attribute changed
attributeChangedCallback(name, oldVal, newVal) {
        if (oldVal !== newVal) {
            switch(name) {
                case 'label-title':
                    this.labelTitle = newVal
                    break;
                case 'label-description':
                    this.labelDescription = newVal
                    break;
            }
        }
    }
attributeChangedCallback ( name , oldVal , newVal ) { if ( oldVal !== newVal ) { switch ( name ) { case 'label-title' : this . labelTitle = newVal break ; case 'label-description' : this . labelDescription = newVal break ; } } }
To do when a attribute changed
To do when a attribute changed