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opt / alt / alt-nodejs14 / root / usr / lib / node_modules / npm / node_modules.bundled / sorted-union-stream /

ðŸ“ ..
ðŸ“„ .npmignore(13 B)
ðŸ“„ .travis.yml(58 B)
ðŸ“„ LICENSE(1.05 KB)
ðŸ“„ README.md(1.39 KB)
ðŸ“„ example.js(313 B)
ðŸ“„ index.js(1.14 KB)
ðŸ“ node_modules
ðŸ“„ package.json(1.54 KB)
ðŸ“„ test.js(2.99 KB)

Editing: index.js

var iterate = require('stream-iterate')
var from = require('from2')

var defaultKey = function (val) {
  return val.key || val
}

var union = function (streamA, streamB, toKey) {
  var readA = iterate(streamA)
  var readB = iterate(streamB)

if (!toKey) toKey = defaultKey

var stream = from.obj(function loop (size, cb) {
    readA(function (err, dataA, nextA) {
      if (err) return cb(err)
      readB(function (err, dataB, nextB) {
        if (err) return cb(err)

if (!dataA && !dataB) return cb(null, null)

if (!dataA) {
          nextB()
          return cb(null, dataB)
        }

if (!dataB) {
          nextA()
          return cb(null, dataA)
        }

var keyA = toKey(dataA)
        var keyB = toKey(dataB)

if (keyA === keyB) {
          nextB()
          return loop(size, cb)
        }

if (keyA < keyB) {
          nextA()
          return cb(null, dataA)
        }

nextB()
        cb(null, dataB)
      })
    })
  })

stream.on('close', function () {
    if (streamA.destroy) streamA.destroy()
    if (streamB.destroy) streamB.destroy()
  })

return stream
}

module.exports = union

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Editing: index.js

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