MurmurHash3.ts

!License
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!NPM Version
!NPM Bundle Size
!Type Definitions

Usage

``javascript
> const murmurHash3 = require('murmurhash3.js');

// Return a 32bit hash as an unsigned integer:
> murmurHash3.x86.hash32("I will not buy this record, it is scratched.");
2832214938

// Return a 128bit hash as a hexadecimal string:
> murmurHash3.x86.hash128("I will not buy this tobacconist's, it is scratched.");
'9b5b7ba2ef3f7866889adeaf00f3f98e'
> murmurHash3.x64.hash128("I will not buy this tobacconist's, it is scratched.");
'd30654abbd8227e367d73523f0079673'

// Specify a starting seed (defaults to 0x0):
> murmurHash3.x86.hash32("My hovercraft is full of eels.", 25);
2520298415

// Hash buffers:
> const buf = new Uint8Array(Array.from({ length: 256}, (_, i) => i));
> murmurHash3.x86.hash32(buf);
3825864278
> murmurHash3.x86.hash128(buf);
Uint8Array [44, 86, 200, 143, 219, 69, 3, 223, 211, 82, 178, 26, 73, 76, 162, 192];

// Progressively hash streams of data as either buffers or strings:
> const state32 = murmurHash3.x86.hash32(buf.slice(0, 127), 0x0, false);
> murmurHash3.x86.hash32(buf.slice(127), state32, true);
3825864278
> const state128 = murmurHash3.x86.hash128(buf.slice(0, 127), 0x0, false);
> murmurHash3.x86.hash128(buf.slice(127), state128, true);
Uint8Array [44, 86, 200, 143, 219, 69, 3, 223, 211, 82, 178, 26, 73, 76, 162, 192];
`

API

`javascript
murmurHash3 = {
strToBuf: (str: string = ""
):
Uint8Array,
bufToHex
:
(buf: Uint8Array = new Uint8Array(0)
):
string,
x86
:
{
hash32: (
buf: Uint8Array | string = new Uint8Array(0),
state
:
U32 | X86Hash32State = 0x0,
finalize
:
boolean = true,
):
U32 | X86Hash32State,
hash128
:
(
buf: Uint8Array | string = new Uint8Array(0),
state
:
U32 | X86Hash128State = 0x0,
finalize
:
boolean = true
):
Uint8Array | string | X86Hash128State,
}
,
x64: {
hash128: (
buf: Uint8Array | string = new Uint8Array(0),
state
:
U32 | X64Hash128State = 0x0,
finalize
:
boolean = true
):
Uint8Array | string | X64Hash128State,
}
,
}
`


- - -

Requires TextEncoder,
Typed Arrays & DataView`, and additional
es6/es2015 features; bring your own transpiler and
polyfills to target the past.