react replace object in array code example

Example 1: react native update state array of objects

let markers = [ ...this.state.markers ];
markers[index] = {...markers[index], key: value};
this.setState({ markers });

Example 2: react native update state array of objects

let newMarkers = markers.map(el => (
      el.name==='name'? {...el, key: value}: el
))
this.setState({ markers });

Example 3: react replace object in array

_updateStyle (props) {
  const { typeElements } = this.state;
  const updatedHeaders = [...typeElements.headers];
  updatedHeaders[props.index] = props;
  this.setState({
    ...this.state,
    typeElements: {
      ...typeElements,
      headers: updatedHeaders
    }
  ));
}