Tell us what’s happening:
It says syntax error: expected “(” at line 2:5 (right before the ‘isFlat’)
Your code so far
function isFlat(arr) {
if isFlat(arr):
return arr;
}
isFlat([1, 2, 3, 4])
Your browser information:
User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36 Edg/145.0.0.0
Challenge Information:
Daily Coding Challenge - Flattened
https://www.freecodecamp.org/learn/daily-coding-challenge/2026-03-01
