这有一个模块:https://www.npmjs.com/package/string-to-stream

var str = require('string-to-stream')
str('hi there').pipe(process.stdout) // => 'hi there' 

下面是TypeScript中的一个简洁的解决方案:

import { Readable } from 'stream'

class ReadableString extends Readable {
    private sent = false

    constructor(
        private str: string
    ) {
        super();
    }

    _read() {
        if (!this.sent) {
            this.push(Buffer.from(this.str));
            this.sent = true
        }
        else {
            this.push(null)
        }
    }
}

const stringStream = new ReadableString('string to be streamed...')

这有一个模块:https://www.npmjs.com/package/string-to-stream

var str = require('string-to-stream')
str('hi there').pipe(process.stdout) // => 'hi there' 

编辑:Garth的答案可能更好。

我以前的答案文本保存在下面。

要将字符串转换为流，可以使用pause through流:

through().pause().queue('your string').end()

例子:

var through = require('through')

// Create a paused stream and buffer some data into it:
var stream = through().pause().queue('your string').end()

// Pass stream around:
callback(null, stream)

// Now that a consumer has attached, remember to resume the stream:
stream.resume()

只需创建一个流模块的新实例，并根据您的需要定制它:

var Stream = require('stream');
var stream = new Stream();

stream.pipe = function(dest) {
  dest.write('your string');
  return dest;
};

stream.pipe(process.stdout); // in this case the terminal, change to ya-csv

or

var Stream = require('stream');
var stream = new Stream();

stream.on('data', function(data) {
  process.stdout.write(data); // change process.stdout to ya-csv
});

stream.emit('data', 'this is my string');

不要用Jo Liss的简历回答。这在大多数情况下都是可行的，但在我的案例中，它却让我花了4或5个小时去寻找漏洞。不需要第三方模块来做这件事。

新回答:

var Readable = require('stream').Readable

var s = new Readable()
s.push('beep')    // the string you want
s.push(null)      // indicates end-of-file basically - the end of the stream

这应该是一个完全兼容的可读流。有关如何正确使用流的更多信息，请参阅这里。

旧的回答: 只需要使用本地PassThrough流:

var stream = require("stream")
var a = new stream.PassThrough()
a.write("your string")
a.end()

a.pipe(process.stdout) // piping will work as normal
/*stream.on('data', function(x) {
   // using the 'data' event works too
   console.log('data '+x)
})*/
/*setTimeout(function() {
   // you can even pipe after the scheduler has had time to do other things
   a.pipe(process.stdout) 
},100)*/

a.on('end', function() {
    console.log('ended') // the end event will be called properly
})

注意，'close'事件不会被触发(流接口不需要)。