cash-countdown.js

  
updateExpiry = () => {
    let today = new Date();
    const options = { day: 'numeric', month: 'long', year: 'numeric' };

    today.setDate(today.getDate() + this.state.daysLeft);
    today = today.toLocaleDateString('en-GB', options);
    this.setState({ expiry: today });
  };

  updateTotal = event => {
    event.target.value = Number(event.target.value.split(',').join(''));
    if (!isNaN(event.target.value)) {
      const numeric = Number(event.target.value);
      this.setState({ total: numeric }, () => this.updateTime());
    }
  };