The Leaderboard Arrived Sorted. JavaScript Re-sorted It by User ID.
Why JavaScript object key order puts integer-like keys first in ascending order, how that silently reorders JSON from your API, and when to use an array or Map.
5 min read
Why JavaScript object key order puts integer-like keys first in ascending order, how that silently reorders JSON from your API, and when to use an array or Map.
Understand the difference between shallow and deep copies, with examples and pitfalls.