字符分类器-海明分类器

海明分类器 是给字符分类，应用场景有 url短链，可以给任意字符生成一个短链

依赖md5.js

function string10to62(number) {

    var chars = '0123456789abcdefghigklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ'.split(''),
        radix = chars.length,
        qutient = +number,
        arr = [];
    do {
        mod = qutient % radix;
        qutient = (qutient - mod) / radix;
        arr.unshift(chars[mod]);
    } while (qutient);
    return arr.join('');
}
function string62to10(number_code) {
    var chars = '0123456789abcdefghigklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ',
        radix = chars.length,
        number_code = String(number_code),
        len = number_code.length,
        i = 0,
        origin_number = 0;
    while (i < len) {
        origin_number += Math.pow(radix, i++) * chars.indexOf(number_code.charAt(len - i) || 0);
    }
    return origin_number;
}
function string10to63(number) {
    var chars = '0123456789abcdefghigklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ,'.split(''),
        radix = chars.length,
        qutient = +number,
        arr = [];
    do {
        mod = qutient % radix;
        qutient = (qutient - mod) / radix;
        arr.unshift(chars[mod]);
    } while (qutient);
    return arr.join('');
}
function string63to10(number_code) {
    var chars = '0123456789abcdefghigklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ,',
        radix = chars.length,
        number_code = String(number_code),
        len = number_code.length,
        i = 0,
        origin_number = 0;
    while (i < len) {
        origin_number += Math.pow(radix, i++) * chars.indexOf(number_code.charAt(len - i) || 0);
    }
    return origin_number;
}
//海明分类器
function HammingTag(s) {
    var s1=hex_md5(s)
    var rs='552cb8e71eea229fd1ea8ac0010057e6';//作者的md5
    let n='';
    for(var i=0;i<s1.length;i++){
        n=n+(s1[i]===rs[i]?'0':'1');
    }

    return parseInt(n,2);
}

//demo

const tag=HammingTag(1);

const id=string63to10(string10to62(tag)+',3')
const key=string10to62(id);


console.log(id)
console.log(key)
const nid=string62to10(key);
const arr=string10to63(nid).split(',').map(function (str) {
    return string62to10(str)
})
console.log(arr)