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prevent scrollListener in case of unmounted #156

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prevent scrollListener in case of unmounted #156

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5 changes: 5 additions & 0 deletions src/index.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,7 @@ export default class InfiniteScroll extends Component<Props, State> {
private maxPullDownDistance = 0;

componentDidMount() {
this._mounted = true;
this._scrollableNode = this.getScrollableTarget();
this.el = this.props.height
? this._infScroll
Expand Down Expand Up @@ -115,6 +116,7 @@ export default class InfiniteScroll extends Component<Props, State> {
}

componentWillUnmount() {
this._mounted = false;
if (this.el) {
this.el.removeEventListener('scroll', e =>
this.throttledOnScrollListener(e as MouseEvent)
Expand Down Expand Up @@ -256,6 +258,9 @@ export default class InfiniteScroll extends Component<Props, State> {
}

onScrollListener = (event: MouseEvent) => {
if(!this._mounted) {
return;
}
if (typeof this.props.onScroll === 'function') {
// Execute this callback in next tick so that it does not affect the
// functionality of the library.
Expand Down