import ep, {PredictionResult} from "@jinwangchina/element-predictor"; let elementSelectors = [ "#topLeft", "#topRight", "#center", "#bottomLeft", "#bottomRight" ]; ep.setup( { elementSelectors, handler: ( result: PredictionResult ) => { if ( result ) { let element = result.element as HTMLElement; element.style.border = "2px solid"; } else { elementSelectors.filter( selector => { let element = document.querySelector( selector ) as HTMLElement; element.style.border = "none"; } ); } } } ); ep.start();