merge2 1.4.1

Merge2 is a powerful and user-friendly Node.js package hosted on npm that allows you to merge multiple streams into a single stream. This can be done either sequentially or in parallel. The merging of streams is a vital part of handling streaming data in applications, particularly when there's a need to consolidate different data sources or to organize various data processing tasks in a pipeline fashion.

To use merge2, you need to first install it via npm:

npm install merge2

Once installed, you can include it in your JavaScript project:

const merge2 = require('merge2')

You can then use merge2 to merge different streams. For instance, the following example uses Gulp tasks, but the principle is the same if you're working with raw streams:

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/'))
})

You also have the ability to add more streams to your merge, define merging orders, and do nested merging with merge2.

The Merge2 documentation is available on its npm page. The readme file not only includes a basic introduction of the package, but it also provides several usage examples, explaining how to install merge2, merge different streams, and use options to affect how streams get merged. Please visit the merge2 npm page for complete documentation.