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Rich Trott
d7aa8fa088
Update ESLint to 2.1.0. ESLint has a number of potentially-useful new features but this change attempts to be minimal in its changes. However, some things could not be avoided reasonably. ESLint 2.1.0 found a few lint issues that ESLing 1.x missed with template strings that did not take advantage of any features of template strings, and `let` declarations where `const` sufficed. Additionally, ESLint 2.1.0 removes some granularity around enabling ES6 features. Some features (e.g., spread operator) that had been turned off in our configuration for ESLint 1.x are now permitted. PR-URL: https://github.com/nodejs/node/pull/5214 Reviewed-By: Michaël Zasso <mic.besace@gmail.com> Reviewed-By: jbergstroem - Johan Bergström <bugs@bergstroem.nu> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Roman Reiss <me@silverwind.io> Reviewed-By: Myles Borins <myles.borins@gmail.com>
#through
Easy way to create a Stream that is both readable and writable.
- Pass in optional
writeandendmethods. throughtakes care of pause/resume logic if you usethis.queue(data)instead ofthis.emit('data', data).- Use
this.pause()andthis.resume()to manage flow. - Check
this.pausedto see current flow state. (writealways 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