Weekly downloads
Readme
Merge multiple streams into one stream in sequence or parallel.
Install with npm
npm install merge2
const gulp = require('gulp')
const merge2 = require('merge2')
const concat = require('gulp-concat')
const minifyHtml = require('gulp-minify-html')
const ngtemplate = require('gulp-ngtemplate')
gulp.task('app-js', function () {
return merge2(
gulp.src('static/src/tpl/*.html')
.pipe(minifyHtml({empty: true}))
.pipe(ngtemplate({
module: 'genTemplates',
standalone: true
})
), gulp.src([
'static/src/js/app.js',
'static/src/js/locale_zh-cn.js',
'static/src/js/router.js',
'static/src/js/tools.js',
'static/src/js/services.js',
'static/src/js/filters.js',
'static/src/js/directives.js',
'static/src/js/controllers.js'
])
)
.pipe(concat('app.js'))
.pipe(gulp.dest('static/dist/js/'))
})
const stream = merge2([stream1, stream2], stream3, {end: false})
//...
stream.add(stream4, stream5)
//..
stream.end()
// equal to merge2([stream1, stream2], stream3)
const stream = merge2()
stream.add([stream1, stream2])
stream.add(stream3)
// merge order:
// 1. merge `stream1`;
// 2. merge `stream2` and `stream3` in parallel after `stream1` merged;
// 3. merge 'stream4' after `stream2` and `stream3` merged;
const stream = merge2(stream1, [stream2, stream3], stream4)
// merge order:
// 1. merge `stream5` and `stream6` in parallel after `stream4` merged;
// 2. merge 'stream7' after `stream5` and `stream6` merged;
stream.add([stream5, stream6], stream7)
// nest merge
// equal to merge2(stream1, stream2, stream6, stream3, [stream4, stream5]);
const streamA = merge2(stream1, stream2)
const streamB = merge2(stream3, [stream4, stream5])
const stream = merge2(streamA, streamB)
streamA.add(stream6)
const merge2 = require('merge2')
return a duplex stream (mergedStream). streams in array will be merged in parallel.
return the mergedStream.
It will emit 'queueDrain' when all streams merged. If you set end === false
in options, this event give you a notice that should add more streams to merge or end the mergedStream.
option
Type: Readable
or Duplex
or Transform
stream.
option
Type: Object
.
end - Boolean
- if end === false
then mergedStream will not be auto ended, you should end by yourself. Default: undefined
pipeError - Boolean
- if pipeError === true
then mergedStream will emit error
event from source streams. Default: undefined
objectMode - Boolean
. Default: true
objectMode
and other options(highWaterMark
, defaultEncoding
...) is same as Node.js Stream
.
MIT © Teambition
FAQs
Merge multiple streams into one stream in sequence or parallel.
The npm package merge2 receives a total of 23,173,901 weekly downloads. As such, merge2 popularity was classified as popular.
We found that merge2 demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket installs a Github app to automatically flag issues on every pull request and report the health of your dependencies. Find out what is inside your node modules and prevent malicious activity before you update the dependencies.