Question

是否可以使用更高阶的javascript函数将一维数组的大小调整为多维数组（即1x6到2x3），还是必须解决for循环？

您有任何代码示例将[0,1,2,3,4,5]调整为[[0,1,2],[3,4,5]]？

Answer 1

对于真正的2D数组，您可以将其展平并使用生成器通过使用新数组的映射获取值。

List<BlockEntry> blockList = new ArrayList<BlockEntry>();

File parent = new File(System.getProperty("java.io.tmpdir"));

File temp = new File(parent, "sample-file.txt");
String blockText="hellow world";

    if (temp.exists()) {
        temp.delete();
    }

    try {
        temp.createNewFile();
        CloudBlockBlob blob = container.getBlockBlobReference(temp.getName());
        blob.uploadFromFile(temp.getAbsolutePath());

        //Add Block to the created blob
        String blockId1 = Base64.encode("B1".getBytes());
        InputStream inputStream1 = new ByteArrayInputStream(blockText.getBytes());

        long len = -1;

        BlockEntry block1 = new BlockEntry(blockId1);

        blockList.add(block1);

        blockBlob.uploadBlock(blockId1, inputStream1, len);
        blockBlob.commitBlockList(blockList);

        //Print the blob content
        System.out.println("Printing the block content" + blob.downloadText());

    } catch (IOException ex) {
        ex.printStackTrace();
    }

Answer 2

使用Ramda https://ramdajs.com/docs/#splitEvery

ContextMiddleware

重新定义JavaScript数组的尺寸（即1x6 => 2x3）

2 个答案: