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use this.setState() continuation callback in example code #16

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use this.setState() continuation callback in example code #16

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40 changes: 24 additions & 16 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -43,19 +43,24 @@ const searchAPI = text => fetch('/search?text=' + encodeURIComponent(text));
const searchAPIDebounced = AwesomeDebouncePromise(searchAPI, 500);

class SearchInputAndResults extends React.Component {
mounted = true;

state = {
text: '',
results: null,
};

handleTextChange = async text => {
this.setState({ text, results: null });
const result = await searchAPIDebounced(text);
this.setState({ result });
handleTextChange = text => {
this.setState({ text, results: null }, async () => {
const results = await searchAPIDebounced(text);
if (this.mounted) {
this.setState({ results });
}
});
};

componentWillUnmount() {
this.setState = () => {};
this.mounted = false;
}
}
```
Expand Down Expand Up @@ -114,9 +119,10 @@ class SearchInputAndResults extends React.Component {
value2: '',
};

onFieldTextChange = async (fieldId, fieldValue) => {
this.setState({ [fieldId]: fieldValue });
await saveFieldValueDebounced(fieldId, fieldValue);
onFieldTextChange = (fieldId, fieldValue) => {
this.setState({ [fieldId]: fieldValue }, async () => {
await saveFieldValueDebounced(fieldId, fieldValue);
});
};

render() {
Expand Down Expand Up @@ -172,12 +178,13 @@ The debouncing function returned by the lib is stateful. If you want deboucing t
Instead of this:

```js
handleTextChange = async text => {
handleTextChange = text => {
const searchAPI = text => fetch('/search?text=' + encodeURIComponent(text));
const searchAPIDebounced = AwesomeDebouncePromise(searchAPI, 500);
this.setState({ text, results: null });
const result = await searchAPIDebounced(text);
this.setState({ result });
this.setState({ text, results: null }, async () => {
const results = await searchAPIDebounced(text);
this.setState({ results });
});
};
```

Expand All @@ -187,10 +194,11 @@ Do this:
const searchAPI = text => fetch('/search?text=' + encodeURIComponent(text));
const searchAPIDebounced = AwesomeDebouncePromise(searchAPI, 500);

handleTextChange = async text => {
this.setState({ text, results: null });
const result = await searchAPIDebounced(text);
this.setState({ result });
handleTextChange = text => {
this.setState({ text, results: null }, async () => {
const results = await searchAPIDebounced(text);
this.setState({ results });
});
};
```

Expand Down