无论如何有将数组返回到不同的网格列

时间:2018-07-09 22:02:58

标签: javascript reactjs

我有一个类似的功能,我想将单元格放在网格列的左侧和右侧,现在它只是一个一个地放置,对于左侧网格列,它应该是function PortIPAddress(Port: string): string; var buf: PWideChar; pd: PRINTER_DEFAULTS; c, d, bs, hXcv: cardinal; begin Result := 'unknown'; ZeroMemory(@pd, SizeOf(PRINTER_DEFAULTS)); pd.DesiredAccess := SERVER_ACCESS_ADMINISTER; if OpenPrinter(PAnsiChar(Format(',XcvPort %s', [Port])), hXcv, @pd) then begin XcvData(hXcv, 'IPAddress', nil, 0, nil, 0, @bs, @c); GetMem(buf, bs); try if XcvData(hXcv, 'IPAddress', nil, 0, buf, bs, @d, @c) then Result := buf; finally FreeMem(buf, bs); end; end; ClosePrinter(hXcv); end; ,对于右边的那个可以是<GridColumn gridUnits={6}>,是否有根据索引来区别对待的东西,如果是奇数,则属于左Grid Column,如果是偶数,则属于右Grid Column?

如何实现?

<GridColumn gridUnits={6} position='last'>

1 个答案:

答案 0 :(得分:1)

可能可以执行以下操作:

generateEquipmentListByCell(printerCellMap, dryerCellMap) {
    const equipmentKey = {...printerCellMap, ...dryerCellMap};
    if (!_.isEmpty(equipmentKey)) {
        return (
            <div>
                <GridColumn gridUnits={6}>
                {
                    Object.keys(equipmentKey).map((key, index) => (
                        (index % 2) ?
                            <EquipmentCell printerList={printerCellMap[key]}
                                           dryerList={dryerCellMap[key]}
                                           index={index}/> : null
                    ));
                }
                </GridColumn>
                <GridColumn gridUnits={6} position="last">
                {
                    Object.keys(equipmentKey).map((key, index) => (
                        (index % 2 !== 0) ?
                            <EquipmentCell printerList={printerCellMap[key]}
                                           dryerList={dryerCellMap[key]}
                                           index={index}/> : null
                    ));
                }
                </GridColumn>
            </div>
        );
    }
}

要求您执行两个循环,但它应该可以实现您的目标。如果不确定%运算符的作用。可以找到文档here