React js multiple instances of date picker

Question

I am having problem updating the date on react-datepicker if I use multiple instances of datepicker.

Date picker Component:

<DatePicker
  selected={this.state.from}
  onChange={this.changeDate.bind(this)}
/>

On change handler:

changeDate(date) {
    this.setState({
        from : date
    });
}

This seems to work fine if i am using only one instance, but when I add more than one instances, I have to create separate onchange handler for each of the newly created date picker component. What I am looking for is a way to write just a single onchange handler function and handle change events for multiple instances of datepicker in that same function.

Answer 1

You can have a object field state to store each date value in property

this.state = {
    fields: {}
}

handleDateChange = (dateName, dateValue) => {
    this.setState({
        fields: {
            ...this.fields,
            [dateName]: dateValue
        }
    })
}

// IN RENDER
<ReactDatepicker 
    value={this.fields["dateStart"]}
    onChange={(value) => handleDateChange("dateStart", value)}
/>