I'm dispatching an action from some-other component , and store is getting updated with svgArr
property, but though the following Stateless component connect'ed
to the store , it ain't getting updated when store changes for svgArr
.
Is it how it suppose to behave as it's a stateless component ? Or am I doing something wrong ?
const Layer = (props) => {
console.log(props.svgArr);
return (<div style = {
{
width: props.canvasWidth,
height: props.canvasWidth
}
}
className = {
styles.imgLayer
} > hi < /div>);
};
connect((state) => {
return {
svgArr: state.svgArr
};
}, Layer);
export default Layer;
You seem to be exporting Layer instead of the connected version of the Layer component.
If you look at the redux documentation: https://github.com/reactjs/react-redux/blob/master/docs/api.md#inject-dispatch-and-todos
It should be something like
function mapStateToProps(state) { return {svgArr: state.svgArr} } export default connect(mapSTateToProps)(Layer)
Here's a rewrite of your code
import {connect} from 'react-redux';
// this should probably not be a free variable
const styles = {imgLayer: '???'};
const _Layer = ({canvasWidth}) => (
<div className={styles.imgLayer}
style={{
width: canvasWidth,
height: canvasWidth
}}
children="hi" />
);
const Layer = connect(
state => ({
svgArr: state.svgArr
})
)(_Layer);
export default Layer;
If you want to connect the stateless function you should wrap it into the another const:
const Layer = (props) => {
return (
<div >
</div>
);
};
export const ConnectedLayer = connect(mapStateToProps)(Layer);
In addition, you can also pass multiple state object with functional components.
import {connect} from 'react-redux';
const PartialReview = ({auth, productreview}) => (
<div className="row">
<h2>{auth.uInfo._ubase}<h2>
<p>{productreview.review_description}
</div>
);
const mapStateToProps = (state) => {
return {auth: state.auth,productreview: state.productreview}
};
export default connect(mapStateToProps)(PartialReview)
Here use redux with functional component in react native
import { useSelector } from 'react-redux';
const variable = useSelector(state => state.user.variable)
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