JAVASCRIPT (HELP) : Can you help me, please ( 
function getChar that takes 1 parameter - an array of words. I must concatenate the nth letter from each word which should be returned as a string( for example : getChar(["javascript", "is cool", "123"]). returned value js3)
 what"S wrong?

    function getChar(arr)
    {
    return arr.mao(function(v,i,a){
    return v[i];}).join(" ");
    }