React Datepicker( can't get value of input) - reactjs

Question

I am new in react. I need use react-datepicker
I want to get value of input, when I change date.
If i click on 20th October 2017, i want put 20th October 2017 in my variable.
But the main problem that I should work with component, not with input.
Before I just took value from state. Like this.state.value. But right now it is object(Moment) in state. And this object doesn't have value field.
There is my code:
export default class DatePicker extends Component {
constructor (props) {
super(props);
// this.props.date should looks like "29 November 2017 00:00"
// second argument for moment() it is format of date, because RFC 2822 date time format
this.state = {
date: moment(this.props.value, 'LLL')
};
}
handleChange = (date) => {
// const valueOfInput = this.state.date <--- I want string with date here
console.log('this.state.date',this.state.date);
this.setState({date: date});
};
render() {
return <Form.Field>
<Label>
<Picker
selected={this.state.date}
onChange={this.handleChange}
dateFormat="LLL"
locale={this.props.language}
/>
</Label>
</Form.Field>

Answer 1

Just use this:
handleChange = date => {
const valueOfInput = date.format();
///...
};
Because this datepicker returns a moment.js object!
For more information, look into the moment.js docs here.

Answer 2

Try this
<DatePicker
onChange={(value, e) => this.handleChange(value, e)}
selected={this.state.inputValue} otherProps={here}
/>
// you can access the value field in handleChange by e.target.value
handleChange(value, e) {
console.log(value); // this will be a moment date object
console.log(e.target.value); // this will be a string value in datepicker input field
}

Answer 3

This solved for me by using the following:
handleDateChange = date => {
let selectedDateFromCalender = date.toUTCString();
this.setState({
actualStartDate: selectedDateFromCalender,
});}
<DatePicker
selected={this.state.startDate}
onChange={this.handleDateChange}/>
You can use the following methods as well, choose according to your requirement:
toISOString: "2020-10-05T09:10:38.000Z"
toJSON: "2020-10-06T09:09:16.000Z"
toUTCString: "Thu, 08 Oct 2020 09:11:24 GMT"

Answer 4

If you want to get the new value (once the user clicks on a new date from DatePicker) pass the event to the method.
class MyComponent extends React.Component {
constructor(props) {
this.state = {inputValue: moment(),} // this will set the initial date to "today",
// you could also put another prop.state value there
this.handleChange = this.handleChange.bind(this);
}
}
handleChange(value) {
console.log(value); // this will be a moment date object
// now you can put this value into state
this.setState({inputValue: value});
}
render(){
...
<DatePicker
onChange={(event) => this.handleChange(event)}
selected={this.state.inputValue} otherProps={here} />
...
}
};

Answer 5

The new version of react-datepicker library stopped using a moment.js object, so here is my solution if you want to get a formatted string representation of the date.
First import
import format from "date-fns/format";
Then
<DatePicker
onChange={(value)=>this.handleChange(format(value, "yyyy/MM/dd", {
awareOfUnicodeTokens: true }))}
dateFormat="yyyy/MM/dd"
selected={this.state.inputValue} otherProps={here} />
...

Answer 6

You can use the getTime() helper function on your date object to get the millisecond timestamp for that specific date, which is a JavaScript number data type. Useful for saving data in the backend of your application. For example Flask Peewee ORM requires a timestamp to be saved for the DateTimeField.
const [startDate, setStartDate] = useState(new Date())
<DatePicker
onSelect( date => {
setStartDate(getTime(date))
}
/>
source: https://date-fns.org/v2.0.0-alpha.7/docs/getTime
Combine it with an effect to set the default state value to a timestamp on page load:
useEffect(() => {
setStartDate(getTime(startDate))
}, [])
Otherwise for your UI, you can use the format() helper function to get the string value of the given object, with any given format:
<h1>{format(startDate, "MMMM d, yyyy h:mm aa")}</h1>
source: https://date-fns.org/v2.0.0-alpha.7/docs/format

Answer 7

I have same problem, and I solved it by using the below solution. Please try it:
<p>{this.state.date.toLocaleDateString()}</p>

Answer 8

<input id="tdate" type="date" name="todate" onchange="getToDate(event);">
function getToDate(e){
const tdate = e.target.value;
//alert(tdate);
//console.log(tdate);
//return tdate;
};
here i am trying to access "tdate" variable outside the function.