react native 网络get请求方式参数不可为undefined或null

react native 网络get请求方式参数不可为undefined(为空的话默认变为)或null

错误写法:

export function addToCartAction(isRefreshing, loading, spId, number, spfId = null, pgId = null) {
    console.warn(‘==>‘,spId+":"+number);
    return  (isRefreshing || loading) ?
        {types: [FETCH_ADD_TO_CART.code, SUCCESS_ADD_TO_CART, FAILURE_ADD_TO_CART],
            callAPI: () => request(FETCH_ADD_TO_CART.url+‘?spId=‘+spId+‘&number=‘+number+‘&spfId=‘+spfId+‘&pgId=‘+pgId),
            payload: {isRefreshing, loading}
        } : {type: CLEAR_ADD_TO_CART, isRefreshing, loading};
}

正确写法:

export function addToCartAction(isRefreshing, loading, spId, number) {
    console.warn(‘==>‘,spId+":"+number);
    return  (isRefreshing || loading) ?
        {types: [FETCH_ADD_TO_CART.code, SUCCESS_ADD_TO_CART, FAILURE_ADD_TO_CART],
            callAPI: () => request(FETCH_ADD_TO_CART.url+‘?spId=‘+spId+‘&number=‘+number),
            payload: {isRefreshing, loading}
        } : {type: CLEAR_ADD_TO_CART, isRefreshing, loading};
}