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sorted-union-stream
Advanced tools
Readme
Get the union of two sorted streams
npm install sorted-union-stream
const union = require('sorted-union-stream')
const { Readable } = require('streamx')
// from converts an array into a stream
const sorted1 = Readable.from([1, 10, 24, 42, 43, 50, 55])
const sorted2 = Readable.from([10, 42, 53, 55, 60])
// combine the two streams into a single sorted stream
const u = new Union(sorted1, sorted2)
u.on('data', function(data) {
console.log(data)
})
u.on('end', function() {
console.log('no more data')
})
Running the above example will print
1
10
24
42
43
50
53
55
60
no more data
If you are streaming objects sorting is based on the compare function you can pass as the 3rd argument.
const sorted1 = Readable.from([{ foo:'a' }, { foo:'b' }, { foo:'c' }])
const sorted2 = Readable.from([{ foo:'b' }, { foo:'d' }])
const u = new Union(sorted1, sorted2, function(a, b) {
return a.foo < b.foo ? -1 : a.foo > b.foo ? 1 : 0
})
union.on('data', function(data) {
console.log(data)
})
Running the above will print
{ foo: 'a' }
{ foo: 'b' }
{ foo: 'c' }
{ foo: 'd' }
MIT
FAQs
Get the union of two sorted streams
The npm package sorted-union-stream receives a total of 139,454 weekly downloads. As such, sorted-union-stream popularity was classified as popular.
We found that sorted-union-stream 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.
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