change border color focus
state: {
isFocused: true
}
handleFocus = () => this.setState({isFocused: true})
handleBlur = () => this.setState({isFocused: false})
<TextInput
onFocus={this.handleFocus}
onBlur={this.handleBlur}
style={[//Your Styles, {
borderBottomColor: this.state.isFocused
? 'black'
: 'red',
borderBottomWidth: 1,
}]}
/>how to change input border color with js
document.getElementById("fName").className = document.getElementById("fName").className + " error"; // this adds the error class
document.getElementById("fName").className = document.getElementById("fName").className.replace(" error", ""); // this removes the error classCopyright © 2021 Codeinu
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