For example you can consider the following code.
let arr = [1, 2, 3,]; // No error, but an unnecessary trailing comma
For example you can consider the following code.
let arr = [1, 2, 3,]; // No error, but an unnecessary trailing comma
That code is not wrong, the trailing comma is accepted, and is even mandatory in some coding styles.
Anyway, this is the freecodecamp repo: GitHub - freeCodeCamp/freeCodeCamp: freeCodeCamp.org's open-source codebase and curriculum. Learn to code for free.
Please read the contributing guidelines if you are interested in contributing: