m尾n合子.js

function kanjinize(v) {
    const minor_suffix = ['', '十', '百', '千'];
    const major_suffix = ['', '万', '億', '兆', '京'];
    const digit = ['', '一', '二', '三', '四', '五', '六', '七', '八', '九'];
    
    if (typeof v != 'number' || v % 1 != 0 || v < 0) {
        return;
    }
    if (v == 0) {
        return '零';
    }
    
    let s = '';
    let idx = 0;
    for (; v > 0; v = Math.floor(v/10), idx++) {
        let ss = '';
        if (v % 10 != 0) {
            ss = digit[v % 10] + minor_suffix[idx % 4];
        }
        if (idx % 4 == 0) {
            if (major_suffix.indexOf(s[0]) != -1) s = s.substr(1);
            ss = ss + major_suffix[idx/4];
        }
        s = ss + s;
    }
    if (s[0] == '一' && s.length > 1) s = s.substr(1);
    return s;
}

function m尾n合子(m, n) {
    return kanjinize(m) + '尾' + kanjinize(n) + '合子';
}

function randInt(min, max) {
    return Math.floor(Math.random() * (max - min)) + min;
}

const MAX = Number.MAX_SAFE_INTEGER;

console.log(m尾n合子(7, 100));
console.log(m尾n合子(randInt(0, 101), randInt(0, 101)))