MongoDB simple mapReduce (counts chars in a wordlist) (ugly version)

mapreduce1.js

map = function(){
  chars = this.word.split("");
  length = chars.length;

  result = {};

  for(var i = 0; i < length; ++i){
    if(! result[chars[i]]) result[chars[i]] = 0;
    result[chars[i]] += 1;
  }

  emit(0, result);
}

reduce = function(key, values){
  length = values.length

  result = {}

  for(var i = 0; i < length; ++i){
    for(var key in values[i]){
      if(! result[key]) result[key] = 0;
      result[key] += values[i][key];
    }
  }

  return result;
}

finalize = function(key, value){
  return [key, value];
}