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react-native-devtools-frontend/node_modules/through
Paul Lewis 911c1b8a93 Updates node_modules
DISABLE_THIRD_PARTY_CHECK=Package needs updating with node_modules
Change-Id: I889f1b86c586e37307a3e13ad762aa56d1ece150
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1946468
Commit-Queue: Paul Lewis <aerotwist@chromium.org>
Reviewed-by: Tim van der Lippe <tvanderlippe@chromium.org>
2019-12-02 14:54:54 +00:00
..
2019-10-21 08:08:56 +02:00
2019-10-21 08:08:56 +02:00
2019-10-21 08:08:56 +02:00
2019-10-21 08:08:56 +02:00
2019-10-21 08:08:56 +02:00
2019-12-02 14:54:54 +00:00
2019-10-21 08:08:56 +02:00

#through

build status testling badge

Easy way to create a Stream that is both readable and writable.

  • Pass in optional write and end methods.
  • through takes care of pause/resume logic if you use this.queue(data) instead of this.emit('data', data).
  • Use this.pause() and this.resume() to manage flow.
  • Check this.paused to see current flow state. (write always returns !this.paused).

This function is the basis for most of the synchronous streams in event-stream.

var through = require('through')

through(function write(data) {
    this.queue(data) //data *must* not be null
  },
  function end () { //optional
    this.queue(null)
  })

Or, can also be used without buffering on pause, use this.emit('data', data), and this.emit('end')

var through = require('through')

through(function write(data) {
    this.emit('data', data)
    //this.pause() 
  },
  function end () { //optional
    this.emit('end')
  })

Extended Options

You will probably not need these 99% of the time.

autoDestroy=false

By default, through emits close when the writable and readable side of the stream has ended. If that is not desired, set autoDestroy=false.

var through = require('through')

//like this
var ts = through(write, end, {autoDestroy: false})
//or like this
var ts = through(write, end)
ts.autoDestroy = false

License

MIT / Apache2