React

by bgvianyc

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

const formatter = new Intl.NumberFormat('en-US', {
  style: 'currency',
  currency: 'USD',
  minimumFractionDigits: 2
})

class TodoApp extends React.Component {
  constructor(props) {
    super(props)
    this.state = {
    	input: ''
  }
  }
  
   handleChange = (event) => {
    this.setState({input: event.target.value});
  } 
  
  render() {
  const currency = formatter.format(this.state.input)
    return (
      <div>
        <h2>Todos:</h2>
        <input type="number" name="salary" onChange={this.handleChange} value={this.state.input} />
        <div>{currency}</div>
      </div>
    )
  }
}

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