sindresorhus / Fnv1a
Licence: mit
FNV-1a non-cryptographic hash function
Stars: ✭ 101
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fnv1a
FNV-1a non-cryptographic hash function
FNV-1a has outstanding distribution and collisions are rare.
FNV hashes are designed to be fast while maintaining a low collision rate. The FNV speed allows one to quickly hash lots of data while maintaining a reasonable collision rate. The high dispersion of the FNV hashes makes them well suited for hashing nearly identical strings such as URLs, hostnames, filenames, text, IP addresses, etc.
Install
$ npm install @sindresorhus/fnv1a
Usage
const fnv1a = require('@sindresorhus/fnv1a');
fnv1a('🦄🌈');
//=> 2868248295
fnv1a.bigInt('🦄🌈', {size: 128});
//=> 13487074350300261116944693128525960095n
API
fnv1a(string)
Returns the hash as a 32-bit positive integer.
fnv1a.bigInt(string, options?)
Generate a larger hash using BigInt.
Returns the hash as a positive BigInt.
options
Type: object
size
Type: number
Values: 32 | 64 | 128 | 256 | 512 | 1024
The bit size of the hash.
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