Summary:
The bug #18374 was caused by the loose condition to execute `stringByReplacingCharactersInRange` in the method `textInputShouldChangeTextInRange` . As a result, `findMismatch` wrongly returning `true` which ends up the Backspace event being fired in another `textInputShouldChangeTextInRange` call in `textInputDidChange`.
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1. Pass all the tests by `yarn run test`
2. Run the following code and type any text. (This code is brought from #18374. Thank you michalpetrov!!) And then verify that 'Backspace' events are not emitted after clearing text
and entering any letters.
```javascript
type Props = {};
type State = {
text: string,
keys: string
};
export default class App extends Component<Props, State> {
state = {text: '', keys: ''}
render() {
return (
<View style={styles.container}>
<TextInput style={styles.textInput} value={this.state.text} onChangeText={this.onChangeText} onKeyPress={this.onKeyPress}/>
<Button title="Clear" onPress={this.onClear}/>
<Text>Text: {this.state.text}</Text>
<Text>Keys: {this.state.keys}</Text>
</View>
);
}
onChangeText = (text: string) => {
this.setState({text})
}
onKeyPress = ({ nativeEvent }: Object) => {
this.setState({keys: this.state.keys + nativeEvent.key + ', '})
}
onClear = () => {
this.setState({text: '', keys: ''})
}
}
```
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[IOS] [BUGFIX] [TextInput] - Fixed the bug where Backspace event was emitted when entering a character after clearing a text in TextInput by an empty string
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[IOS] [BREAKING] [FlatList] - Change a thing that breaks other things
[ANDROID] [BUGFIX] [TextInput] - Did a thing to TextInput
[CLI] [FEATURE] [local-cli/info/info.js] - CLI easier to do things with
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Closes https://github.com/facebook/react-native/pull/18627
Differential Revision: D8436331
Pulled By: hramos
fbshipit-source-id: ec75a6ca926061cbf7cb106db652f2b4a71c9a0c
1ffb2b63be