Caclulate a checksum (adler-32) rolling
npm install rolling-checksumCaclulate a checksum (adler-32) rolling
``
npm install rolling-checksum
`javascript
var rolling = require('./')
, stream = rolling(4, 2) // calculate rolling checksum on data of chunks with length 4, on every second step
, i = 0
, input = 'Hell, Hello, world!'
, read = function() {
var checksum = stream.read()
if (!checksum)
stream.once('readable', read)
else {
console.log(input.slice(i, i + 4), checksum)
i = i + 2
read()
}
}
stream.write(input)
stream.end()
read()
``
Copyright (c) Björklund David
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