static getDerivedStateFromProps()

in src/timer/timer.js [13:24]


    static getDerivedStateFromProps(props, state) {
      if (props.tickPeriod !== state.prevTickPeriod) {
        return {
          prevTickPeriod: props.tickPeriod,
          reSchedule: true
        };
      }
      return {
        prevTickPeriod: state.prevtickPeriod,
        reSchedule: false
      };
    }