React Leaflet: setting a GeoJSON's style dynamically - leaflet

Question

I'm trying to change a GeoJSON component's style dynamically based on whether its ID matches a selector.
The author of the plugin refers to the Leaflet documentation, which says that the style should be passed as a function. Which I'm doing, but no dice.
My component:
import React, { Component } from 'react';
import { connect } from 'react-redux';
import * as actions from '../../actions';
import { Marker, Popup, GeoJSON } from 'react-leaflet';
import { centroid } from '#turf/turf';
const position = geoJSON => {
return centroid(geoJSON).geometry.coordinates.reverse();
};
export class PlotMarker extends Component {
render() {
const {
id,
name,
geoJSON,
zoomLevel,
selectedPlot,
plotBeingEdited
} = this.props;
const markerPosition = position(geoJSON);
let style = () => {
color: 'blue';
};
if (selectedPlot === id) {
style = () => {
color: 'red';
};
}
if (zoomLevel > 14) {
return (
<GeoJSON
id={id}
data={geoJSON}
style={style}
onClick={() => {
this.props.selectPlot(id);
}}
/>
);
}
return (
<Marker
id={id}
className="marker"
position={markerPosition}
onClick={() => {
this.props.selectPlot(id);
}}>
<Popup>
<span>{name}</span>
</Popup>
</Marker>
);
}
}
function mapStateToProps(state) {
return {
selectedPlot: state.plots.selectedPlot,
plotBeingEdited: state.plots.plotBeingEdited,
zoomLevel: state.plots.zoomLevel
};
}
export default connect(mapStateToProps, actions)(PlotMarker);

Answer 1

OK, got it. It had to do with the way I was defining the style function. This doesn't work:
let style = () => {
color: 'blue';
};
if (selectedPlot === id) {
style = () => {
color: 'red';
};
}
if (zoomLevel > 14) {
return (
<GeoJSON
id={id}
data={geoJSON}
style={style}
onClick={() => {
this.props.selectPlot(id);
}}
/>
);
}
This works:
let style = () => {
return {
color: 'blue'
};
};
if (selectedPlot === id) {
style = () => {
return {
color: 'red'
};
};
}
if (zoomLevel > 14) {
return (
<GeoJSON
id={id}
data={geoJSON}
style={style}
onClick={() => {
this.props.selectPlot(id);
}}
/>
);
}