Acme.BookStore.HttpApi.Host/node_modules/concat-stream/readme.md
（开头部分） 3KB这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。
# concat-stream
Writable stream that concatenates all the data from a stream and calls a callback with the result. Use this when you want to collect all the data from a stream into a single buffer.
[](https://travis-ci.org/maxogden/concat-stream)
[](https://nodei.co/npm/concat-stream/)
### description
Streams emit many buffers. If you want to collect all of the buffers, and when the stream ends concatenate all of the buffers together and receive a single buffer then this is the module for you.
Only use this if you know you can fit all of the output of your stream into a single Buffer (e.g. in RAM).
There are also `objectMode` streams that emit things other than Buffers, and you can concatenate these too. See below for details.
## Related
`concat-stream` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.
### examples
#### Buffers
```js
var fs = require('fs')
var concat = require('concat-stream')
var readStream = fs.createReadStream('cat.png')
var concatStream = concat(gotPicture)
readStream.on('error', handleError)
readStream.pipe(concatStream)
function gotPicture(imageBuffer) {
// imageBuffer is all of `cat.png` as a node.js Buffer
}
function handleError(err) {
// handle your error appropriately here, e.g.:
console.error(err) // print the error to STDERR
process.exit(1) // exit program with non-zero exit code
}
```
#### Arrays
```js
var write = concat(function(data) {})
write.write([1,2,3])
write.write([4,5,6])
write.end()
// data will be [1,2,3,4,5,6] in the above callback
```
#### Uint8Arrays
```js
var write = concat(function(data) {})
后面还有 42 行代码，解锁后查看完整代码
24 小时内免费解锁 3 个项目，之后 1 积分/个。 规则说明
AI 解读
登录后可用，每次 10 积分，解读结果公开显示在下面。
还没有人解读过这个文件。
