Google tag manager error?

Question

JavaScript

In google tag manager when inserting javascript code following their example

function()
{
var dSelector = '[name=your-sex]';
var dOptions = document.querySelectorAll(dSelector+' option');
for(var i = 0; i < dOptions.length; i++)
if(dOptions[i].selected)
return dOptions[i].innerHTML;
}

I get in response "Error on line 6, symbol 38. Parse error. ')' expected"
I can not understand what I did wrong (

Answer 1

const dataParse = (string) => {
  let options = {
    day: '2-digit',
    month: 'short',
    year: 'numeric',
    weekday: 'short',
    timezone: 'UTC' 
  }
  let data = new Date(string).toLocaleString("ru", options).split(",")
  return `${data[1]},${data[0]}`
}

console.log(dataParse('12.05.18'))