React

by Aniruddha Galgali

HTML

<div id="app"></div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

li {
  margin: 8px 0;
}

h2 {
  font-weight: bold;
  margin-bottom: 15px;
}

.done {
  color: rgba(0, 0, 0, 0.3);
  text-decoration: line-through;
}

input {
  margin-right: 5px;
}

React

class DateChangeApp extends React.Component {
  constructor(props) {
    super(props)
    this.dateChangeHandler = this.dateChangeHandler.bind(this);
    this.state = {
    	date: new Date(),
      dateString: new Date().toISOString()
    }
  }
  dateChangeHandler(evtObj) {
   console.log(evtObj.target.valueAsDate);
   var newState = { ...this.state };
   newState.date = evtObj.target.valueAsDate;
   newState.dateString = evtObj.target.valueAsDate.toISOString();
   this.setState(newState)
}
  render() {
    console.log(this.state.date.toISOString().split("T")[0]);
    return (
    <div>
      <input type="date" onChange={this.dateChangeHandler} value={this.state.date.toISOString().split("T")[0]}></input>
      <input value={this.state.dateString}></input>
    </div>
    );
  }
}

ReactDOM.render(<DateChangeApp />, document.querySelector("#app"))