cord, try this code:
                        
                        
                        
                            import React, { Component } from "react";
                        
                            
                        
                            export default class Main extends Component {
                        
                              constructor() {
                        
                                super();
                        
                                const date = new Date();
                        
                                const newDate =
                        
                                  date.getFullYear() +
                        
                                  "-" +
                        
                                  ("0" + (date.getMonth() + 1)) +
                        
                                  "-" +
                        
                                  ("0" + date.getDate());
                        
                            
                        
                                this.state = {
                        
                                  startDate: newDate,
                        
                                  endDate: newDate
                        
                                };
                        
                              }
                        
                            
                        
                              setDate = ({ target: { name, value } }) => {
                        
                                this.setState({
                        
                                  [name]: value
                        
                                });
                        
                              };
                        
                            
                        
                              render() {
                        
                                const { endDate, startDate } = this.state;
                        
                                console.log(this.state);
                        
                                return (
                        
                                  <>
                        
                                    <label>From</label>
                        
                                    <input
                        
                                      type="date"
                        
                                      name="startDate"
                        
                                      value={startDate}
                        
                                      onChange={this.setDate}
                        
                                    />
                        
                                    <label>To</label>
                        
                                    <input
                        
                                      type="date"
                        
                                      name="endDate"
                        
                                      value={endDate}
                        
                                      onChange={this.setDate}
                        
                                    />
                        
                                  </>
                        
                                );
                        
                              }
                        
                            }
                        
                        
                        
                        It's cleaner with a generic method that manages your date changes. I also felt free to refactor it a bit. Let me know if it works the way you wanted it to.
                        
                
             
            
                
                    
                        It seems the case is wrong. I cleaned up the code.
                        
                        
                        
                        startdate to startDate
                        
                        enddate to endDate. It seems to work well if you change this part.
                        
                            
                        
                        
                        
                            import React, { Component } from "react";
                        
                            
                        
                            
                        
                            export default class Datepage extends Component {
                        
                              constructor() {
                        
                                super();
                        
                                var date = new Date();
                        
                                var newdate =
                        
                                  date.getFullYear() + "-" + ("0" + (date.getMonth() + 1)) + "-" + date.getDate();
                        
                            
                        
                                this.state = {
                        
                                  startdate: newdate,
                        
                                  enddate: newdate,
                        
                                  clicked: false
                        
                                };
                        
                              }
                        
                            
                        
                              componentDidMount() {
                        
                              }
                        
                            
                        
                              setDate = (e) => {    
                        
                                  this.setState({
                        
                                      [e.target.name]: e.target.value
                        
                                  });    
                        
                              };
                        
                            
                        
                              render() {
                        
                                return (
                        
                                  <div>
                        
                            
                        
                                    <label>From</label>
                        
                                    <input
                        
                                      type="date"
                        
                                      name="startdate"
                        
                                      value={this.state.startdate}
                        
                                      onChange={this.setDate.bind(this)}
                        
                            
                        
                                    />
                        
                            
                        
                                    <label>To</label>
                        
                                    <input
                        
                                      type="date"
                        
                                      name="enddate"
                        
                                      value={this.state.enddate}
                        
                                      onChange={this.setDate.bind(this)}
                        
                                    />
                        
                                  </div>
                        
                                );
                        
                              }
                        
                            }