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murmurhash-node

v1.0.0

Published

JavaScript implementation of the murmurhash algorithm

Downloads

7

Readme

murmurhash-node

Murmur哈希是一种非加密散列函数,适用于一般的基于散列的查找。

本库使用node.js实现murmurhash算法

下载

使用npm进行下载

npm install murmurhash-node --save

使用

const murmurhash32 = require('murmurhash-node').bit32;

// 实现了murmurhash的v1版本和v2版本,返回值为32位的整数类型
murmurhash32.v2('string'); // 1640947696
murmurhash32.v3('string'); // 2904652459

使用种子(seed)来改变返回结果,seed默认为0

murmurhash32.v2('string', 0); // 1640947696
murmurhash32.v3('string', 0); // 2904652459

murmurhash32.v2('string', 49); // 405242662
murmurhash32.v3('string', 49); // 842324242

支持数字、中文或其他特殊字符

murmurhash32.v2(123); // 2461496879
murmurhash32.v2('中国'); // 2187784768
murmurhash32.v2('!@#$%^&*()_+-='); // 1977745461

支持使用Buffer类型

murmurhash32.v2(Buffer.from('7468697320697320612074c3a97374', 'hex')); // 346350001
murmurhash32.v2(Buffer.from('this is a tést')); // 346350001
murmurhash32.v2('this is a tést'); // 346350001

支持返回64位的hash值。seed默认为0,seed支持使用字符串形式的数字

const murmurhash64 = require("murmurhash-node").bit64;

murmurhash64.Av2("test"); // 0x2f4a8724618f4c63
murmurhash64.Av2("hhhh", '0xfffff'); // 0x95218213350c4a20

支持返回128位的hash值。seed默认为0,seed支持使用字符串形式的数字

const murmurhash128 = require("murmurhash-node").bit128;

murmurhash128.x64v3("test"); // 0xac7d28cc74bde19d9a128231f9bd4d82