运动！== SPORTS.monthly＆amp;＆amp;

Question

我是新来的反应js。 当我添加这段代码时，它隐藏了nav标签 运动！== SPORTS.monthly＆amp;＆amp;

你能告诉我为什么...... 它也不在里面如果条件...... 那怎么样呢？

rendergraph(sport, sportKey, data) {
    let componentToRender = null;
    switch (sport) {
        case SPORTS.yearly:
            componentToRender = (<YearlyDataValues DataValuess={data}/>);
            break;
        case SPORTS.monthly:
            componentToRender = (<MonthlyDataValues DataValuess={data}/>);
            break;
        case SPORTS.quarterly:
            componentToRender = (<QuarterlyDataValues DataValuess={data}/>);
            break;
        case SPORTS.all:
            componentToRender = (<AllDataValues DataValuess={data}/>);
            break;
        default:
            componentToRender = null;
    }

    return (
        <div>
            {componentToRender}
            { sport !== SPORTS.monthly &&
                (<nav className="graph-nav">
                    {this.renderPrevious(sport, sportKey)}
                    {
                        // render only if we have data in the store
                        this.dataForRenderer({
                            sport,
                            sportKey: moment(sportKey).add(1, sport.period.toLowerCase()).toDate()
                        }) &&
                        this.renderNext(sport, sportKey)
                    }
                </nav>)
            }
        </div>
    );
},