React-native form not typing in TextInput
1
Giving the components below, I am unable to type in TextInput the letter is written and then deleted, it seems a problem with updating the state. Any clue?
class myContainerComponent extends Component {
constructor(props) {
super(props)
this.onChange = this.onChange.bind(this)
}
onChange(value) {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
class PresentationalComponent extends Component {
render() {
return(
<TextInput
onChangeText={this.props.onChange}
value={this.props.value}
/>
)
}
}
Any clue?
reactjs react-native
edited Nov 21 '18 at 11:38
B--rian
137120
asked Nov 21 '18 at 10:22
steosteo
3,49622452
add a comment |
1
Giving the components below, I am unable to type in TextInput the letter is written and then deleted, it seems a problem with updating the state. Any clue?
class myContainerComponent extends Component {
constructor(props) {
super(props)
this.onChange = this.onChange.bind(this)
}
onChange(value) {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
class PresentationalComponent extends Component {
render() {
return(
<TextInput
onChangeText={this.props.onChange}
value={this.props.value}
/>
)
}
}
Any clue?
reactjs react-native
edited Nov 21 '18 at 11:38
B--rian
137120
asked Nov 21 '18 at 10:22
steosteo
3,49622452
What returns onChangeText ? event or input value? type a console.log(value) in myContainerComponent => onChange
– Taz742
Nov 21 '18 at 10:27
As you can read on the docs it returns the value you're inputting: facebook.github.io/react-native/docs/textinput
– steo
Nov 21 '18 at 10:35
I think you need to initialize value to empty string in constructor state
– Hemadri Dasari
Nov 21 '18 at 10:40
add a comment |
1
1
1
1
Giving the components below, I am unable to type in TextInput the letter is written and then deleted, it seems a problem with updating the state. Any clue?
class myContainerComponent extends Component {
constructor(props) {
super(props)
this.onChange = this.onChange.bind(this)
}
onChange(value) {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
class PresentationalComponent extends Component {
render() {
return(
<TextInput
onChangeText={this.props.onChange}
value={this.props.value}
/>
)
}
}
Any clue?
reactjs react-native
edited Nov 21 '18 at 11:38
B--rian
137120
asked Nov 21 '18 at 10:22
steosteo
3,49622452
Giving the components below, I am unable to type in TextInput the letter is written and then deleted, it seems a problem with updating the state. Any clue?
class myContainerComponent extends Component {
constructor(props) {
super(props)
this.onChange = this.onChange.bind(this)
}
onChange(value) {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
class PresentationalComponent extends Component {
render() {
return(
<TextInput
onChangeText={this.props.onChange}
value={this.props.value}
/>
)
}
}
Any clue?
reactjs react-native
reactjs react-native
edited Nov 21 '18 at 11:38
B--rian
137120
asked Nov 21 '18 at 10:22
steosteo
3,49622452
edited Nov 21 '18 at 11:38
B--rian
137120
asked Nov 21 '18 at 10:22
steosteo
3,49622452
edited Nov 21 '18 at 11:38
B--rian
137120
edited Nov 21 '18 at 11:38
B--rian
137120
edited Nov 21 '18 at 11:38
B--rian
137120
137120
asked Nov 21 '18 at 10:22
steosteo
3,49622452
asked Nov 21 '18 at 10:22
steosteo
3,49622452
asked Nov 21 '18 at 10:22
steosteo
3,49622452
3,49622452
What returns onChangeText ? event or input value? type a console.log(value) in myContainerComponent => onChange
– Taz742
Nov 21 '18 at 10:27
As you can read on the docs it returns the value you're inputting: facebook.github.io/react-native/docs/textinput
– steo
Nov 21 '18 at 10:35
I think you need to initialize value to empty string in constructor state
– Hemadri Dasari
Nov 21 '18 at 10:40
add a comment |
What returns onChangeText ? event or input value? type a console.log(value) in myContainerComponent => onChange
– Taz742
Nov 21 '18 at 10:27
As you can read on the docs it returns the value you're inputting: facebook.github.io/react-native/docs/textinput
– steo
Nov 21 '18 at 10:35
I think you need to initialize value to empty string in constructor state
– Hemadri Dasari
Nov 21 '18 at 10:40
What returns onChangeText ? event or input value? type a console.log(value) in myContainerComponent => onChange
– Taz742
Nov 21 '18 at 10:27
What returns onChangeText ? event or input value? type a console.log(value) in myContainerComponent => onChange
– Taz742
Nov 21 '18 at 10:27
As you can read on the docs it returns the value you're inputting: facebook.github.io/react-native/docs/textinput
– steo
Nov 21 '18 at 10:35
As you can read on the docs it returns the value you're inputting: facebook.github.io/react-native/docs/textinput
– steo
Nov 21 '18 at 10:35
I think you need to initialize value to empty string in constructor state
– Hemadri Dasari
Nov 21 '18 at 10:40
I think you need to initialize value to empty string in constructor state
– Hemadri Dasari
Nov 21 '18 at 10:40
add a comment |
4 Answers
4
active
oldest
votes
1
I believe both other answers are correct but you could simplify your code even more and get rid of the constructor declaration using an arrow function:
class myContainerComponent extends Component {
state = {
value: ''
}
onChange = (value) => {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
answered Nov 21 '18 at 10:54
Kevin AmiranoffKevin Amiranoff
2,73651337
add a comment |
2
Add this to your myContainerComponent constructor:
this.state = {
value: '',
}
answered Nov 21 '18 at 10:48
kivulkivul
483114
add a comment |
2
You should initialise your state in your constructor:
constructor(props){
super(props);
this.state = {
value: ''
}
}
answered Nov 21 '18 at 10:49
PhobosPhobos
1016
add a comment |
1
import * as React from 'react';
import { TextInput } from 'react-native';
export default class App extends React.Component {
constructor(props) {
super(props)
this.state = {
value: {}
};
this.onChange = this.onChange.bind(this)
}
onChange(value) {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
class PresentationalComponent extends React.Component {
render() {
return(
<TextInput
onChangeText={this.props.onChange}
value={this.props.value}
/>
)}
}
answered Nov 21 '18 at 10:27
SuprabhaSuprabha
1566
add a comment |
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4 Answers
4
active
oldest
votes
4 Answers
4
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
I believe both other answers are correct but you could simplify your code even more and get rid of the constructor declaration using an arrow function:
class myContainerComponent extends Component {
state = {
value: ''
}
onChange = (value) => {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
answered Nov 21 '18 at 10:54
Kevin AmiranoffKevin Amiranoff
2,73651337
add a comment |
1
I believe both other answers are correct but you could simplify your code even more and get rid of the constructor declaration using an arrow function:
class myContainerComponent extends Component {
state = {
value: ''
}
onChange = (value) => {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
answered Nov 21 '18 at 10:54
Kevin AmiranoffKevin Amiranoff
2,73651337
add a comment |
1
1
1
I believe both other answers are correct but you could simplify your code even more and get rid of the constructor declaration using an arrow function:
class myContainerComponent extends Component {
state = {
value: ''
}
onChange = (value) => {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
answered Nov 21 '18 at 10:54
Kevin AmiranoffKevin Amiranoff
2,73651337
I believe both other answers are correct but you could simplify your code even more and get rid of the constructor declaration using an arrow function:
class myContainerComponent extends Component {
state = {
value: ''
}
onChange = (value) => {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
answered Nov 21 '18 at 10:54
Kevin AmiranoffKevin Amiranoff
2,73651337
answered Nov 21 '18 at 10:54
Kevin AmiranoffKevin Amiranoff
2,73651337
answered Nov 21 '18 at 10:54
Kevin AmiranoffKevin Amiranoff
2,73651337
answered Nov 21 '18 at 10:54
Kevin AmiranoffKevin Amiranoff
2,73651337
2,73651337
add a comment |
add a comment |
2
Add this to your myContainerComponent constructor:
this.state = {
value: '',
}
answered Nov 21 '18 at 10:48
kivulkivul
483114
add a comment |
2
Add this to your myContainerComponent constructor:
this.state = {
value: '',
}
answered Nov 21 '18 at 10:48
kivulkivul
483114
add a comment |
2
2
2
Add this to your myContainerComponent constructor:
this.state = {
value: '',
}
answered Nov 21 '18 at 10:48
kivulkivul
483114
Add this to your myContainerComponent constructor:
this.state = {
value: '',
}
answered Nov 21 '18 at 10:48
kivulkivul
483114
answered Nov 21 '18 at 10:48
kivulkivul
483114
answered Nov 21 '18 at 10:48
kivulkivul
483114
answered Nov 21 '18 at 10:48
kivulkivul
483114
483114
add a comment |
add a comment |
2
You should initialise your state in your constructor:
constructor(props){
super(props);
this.state = {
value: ''
}
}
answered Nov 21 '18 at 10:49
PhobosPhobos
1016
add a comment |
2
You should initialise your state in your constructor:
constructor(props){
super(props);
this.state = {
value: ''
}
}
answered Nov 21 '18 at 10:49
PhobosPhobos
1016
add a comment |
2
2
2
You should initialise your state in your constructor:
constructor(props){
super(props);
this.state = {
value: ''
}
}
answered Nov 21 '18 at 10:49
PhobosPhobos
1016
You should initialise your state in your constructor:
constructor(props){
super(props);
this.state = {
value: ''
}
}
answered Nov 21 '18 at 10:49
PhobosPhobos
1016
answered Nov 21 '18 at 10:49
PhobosPhobos
1016
answered Nov 21 '18 at 10:49
PhobosPhobos
1016
answered Nov 21 '18 at 10:49
PhobosPhobos
1016
1016
add a comment |
add a comment |
1
import * as React from 'react';
import { TextInput } from 'react-native';
export default class App extends React.Component {
constructor(props) {
super(props)
this.state = {
value: {}
};
this.onChange = this.onChange.bind(this)
}
onChange(value) {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
class PresentationalComponent extends React.Component {
render() {
return(
<TextInput
onChangeText={this.props.onChange}
value={this.props.value}
/>
)}
}
answered Nov 21 '18 at 10:27
SuprabhaSuprabha
1566
add a comment |
1
import * as React from 'react';
import { TextInput } from 'react-native';
export default class App extends React.Component {
constructor(props) {
super(props)
this.state = {
value: {}
};
this.onChange = this.onChange.bind(this)
}
onChange(value) {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
class PresentationalComponent extends React.Component {
render() {
return(
<TextInput
onChangeText={this.props.onChange}
value={this.props.value}
/>
)}
}
answered Nov 21 '18 at 10:27
SuprabhaSuprabha
1566
add a comment |
1
1
1
import * as React from 'react';
import { TextInput } from 'react-native';
export default class App extends React.Component {
constructor(props) {
super(props)
this.state = {
value: {}
};
this.onChange = this.onChange.bind(this)
}
onChange(value) {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
class PresentationalComponent extends React.Component {
render() {
return(
<TextInput
onChangeText={this.props.onChange}
value={this.props.value}
/>
)}
}
answered Nov 21 '18 at 10:27
SuprabhaSuprabha
1566
import * as React from 'react';
import { TextInput } from 'react-native';
export default class App extends React.Component {
constructor(props) {
super(props)
this.state = {
value: {}
};
this.onChange = this.onChange.bind(this)
}
onChange(value) {
this.setState({
value
})
}
render() {
return (
<PresentationalComponent
onChange={this.onChange}
value={this.state.value}
/>
)
}
}
class PresentationalComponent extends React.Component {
render() {
return(
<TextInput
onChangeText={this.props.onChange}
value={this.props.value}
/>
)}
}
answered Nov 21 '18 at 10:27
SuprabhaSuprabha
1566
edited Nov 21 '18 at 10:55
answered Nov 21 '18 at 10:27
SuprabhaSuprabha
1566
answered Nov 21 '18 at 10:27
SuprabhaSuprabha
1566
answered Nov 21 '18 at 10:27
SuprabhaSuprabha
1566
1566
add a comment |
add a comment |
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What returns onChangeText ? event or input value? type a console.log(value) in myContainerComponent => onChange
– Taz742
Nov 21 '18 at 10:27
As you can read on the docs it returns the value you're inputting: facebook.github.io/react-native/docs/textinput
– steo
Nov 21 '18 at 10:35
I think you need to initialize value to empty string in constructor state
– Hemadri Dasari
Nov 21 '18 at 10:40