Javascript library to read and write 39-bit unsigned integer buffers, useful when working with Bitcoin BIP-65 scripts.
const UInt39 = require('uint39')
const one = UInt39.fromBigInt(BigInt(1))
const max = UInt39.fromNumber(Math.pow(2, 39) - 1)
one.sizeOptimized() // returns Buffer { 0x01 }
one.toBuffer() // returns Buffer { 0x00 0x00 0x00 0x00 0x01 }
max.sizeOptimized() // returns Buffer { 0x7f 0xff 0xff 0xff 0xff }
const reverse = UInt39.fromBuffer(Buffer.from('1337', 'hex'))
reverse.toNumber() // returns 4919
FAQs
39-bit UInts for Bitcoin BIP-65 scripting
The npm package uint39 receives a total of 0 weekly downloads. As such, uint39 popularity was classified as not popular.
We found that uint39 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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