I'm doing everything right in this isLess example and it's just not running

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**

function isLess(a, b) {
// Only change code below this line
 function isLess(a,b) {
 return a<b;
}
// Only change code above this line
}

isLess(10, 15);
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.71 Safari/537.36

Challenge: Returning Boolean Values from Functions

Link to the challenge:

Why have you defined your function twice?

ohh thank you. I just corrected it.