//python code
def new_list(n):
    n_dict = {}
    n_dict['words'] = []
    n_dict['numbers'] = []

    for i in n:

        if i == str(i):
            n_dict['words'].append(i)
        else:
            n_dict['numbers'].append(i)

    return n_dict

// javaScript
function new_list(n){
  var dict = {};
  dict.words = [];
  dict.numbers = [];

  for(var i in n){
    if (i == str(i)){
      dict.words.push(i);
    }
    else{
      dict.numbers.push(i);
    }
  }
  return dict;
}

var m = ["book", 4, "hook", 4.5]
console.log(new_list(m))

m = ["book", 4, "hook", 4.5]
print(new_list(m))
//my problem is the str function is not valid in javascript, what do should i use. i want the result to be
dict = { 'words' : ["books", "hooks"], 'numbers': [4, 4.5]