javascript - grid creator

var size = Number(prompt("What size grid would you like?"))
var text = " "

for (var i=0; i<size; i++){
  if(i%2 === 0){
    for (var l=0; l<size; l++){
      text += " #";
    }
    text += "\n";
    var l = 0;
  } else {
    for (var l=0; l<size; l++){
      text += "# ";
  }
    text += "\n";
    var l = 0;
};
};

console.log(text);