     if (state.running) {
                    clearInterval(this.timer)
                } else {
                    const startTime =
                        Date.now() - this.state.lapse
                    this.timer = setInterval(() => {
                        this.setState({
                            lapse: Date.now() - startTime,
                        })
                    })
                }
                return {running: !state.running}
            })
        }
        handleClearClick = ()