slug

var mapa = {'á':'a','é':'e','í':'i','ó':'o','ú':'u','ñ':'n'};
function main(str) {
  var sol = '';
  for(var i = 0;i<str.length;++i) {
    var curr = str[i].toLowerCase();
    curr = (mapa[curr] || curr );
    if(isAscii(curr)) {
      sol+=curr;
    } else {
      if(sol[sol.length-1] !== '-')
        sol+="-";
    }
  }
  if(sol[sol.length-1] === '-') {
    sol = sol.substr(0,sol.length-1);
  }
  return sol;
}

function isAscii(s) {
  return s.charCodeAt(0) >= 'a'.charCodeAt(0) && s.charCodeAt(0) <= 'z'.charCodeAt(0);
}
/*
console.log(main('Bogotá JS @     hola mundo ñ'));
console.log(main('Bogotá JS @     hola mundo ñññwerzd  v89987    alsdf8()))(=='));*/