Exhaustive listing words

exhaustion

function anyequal(arr){
    return arr.some(function(ei,i){
        return arr.some(function(ej,j){return ej==ei && i!=j});
    });
    return res;
}

function getmax(wlen,len){
    var max = (wlen-1).toString(wlen);
    var maxarr = [];
    while(maxarr.length<len)maxarr.unshift(max);
    return maxarr.join("");
}

function match(words,len){
    var wlen = words.length;
    var results = [];

    var i = 0,is,arr;
    var max = getmax(wlen,len);
    do{
        // generate arr
        is = i.toString(wlen);
        arr = is.split("");
        while(arr.length < len)arr.unshift('0');

        // judge
        if(anyequal(arr)){i++;continue;}

        // get result
        result = arr.map(function(num){
            return words[parseInt(num,wlen)];
        }).join("");

        console.log(result);
        results.push(result);
        i++;
    }while(is!=max);
}

match(["球","际","失","落","真","泰","体","星",
    "国","库","谎","难","世","的","黑","言",
    "吧","界","猿","山","灾","人","过","实"],4);