React sprawdzanie meczów w tablicy stanu
let markers = [ ...this.state.markers ];
markers[index] = {...markers[index], key: value};
this.setState({ markers });
Blue Beetle
let markers = [ ...this.state.markers ];
markers[index] = {...markers[index], key: value};
this.setState({ markers });let newMarkers = markers.map(el => (
el.name==='name'? {...el, key: value}: el
))
this.setState({ markers });