node.js 如何将缓冲区包装为 stream2 可读流？
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How to wrap a buffer as a stream2 Readable stream?
提问by Jerome WAGNER
采纳答案by Gabriel Llamas
With streamifieryou can convert strings and buffers to readable streams with the new stream api.
使用streamifier，您可以使用新的流 api 将字符串和缓冲区转换为可读流。
回答by zjonsson
The easiest way is probably to create a new PassThrough stream instance, and simply push your data into it. When you pipe it to other streams, the data will be pulled out of the first stream.
最简单的方法可能是创建一个新的 PassThrough 流实例，然后简单地将数据推送到其中。当您通过管道将其传输到其他流时，数据将从第一个流中拉出。
var stream = require('stream');
// Initiate the source
var bufferStream = new stream.PassThrough();
// Write your buffer
bufferStream.end(new Buffer('Test data.'));
// Pipe it to something else (i.e. stdout)
bufferStream.pipe(process.stdout)
回答by morris4
As natevw suggested, it's even more idiomatic to use a stream.PassThrough, and endit with the buffer:
正如 natevw 所建议的那样，使用 astream.PassThrough和end它与缓冲区更加惯用：
var buffer = new Buffer( 'foo' );
var bufferStream = new stream.PassThrough();
bufferStream.end( buffer );
bufferStream.pipe( process.stdout );
This is also how buffers are converted/piped in vinyl-fs.
这也是缓冲区在vinyl-fs中转换/管道的方式。
