Contact person: Business Client

Phone:Show

Email:Show

Location: Mansfield, United States

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I’m dealing with a stubborn, seemingly random JavaScript problem on my website: every now and then a simple for-loop that pushes items into an array—or inserts them into a Set—finishes with an empty collection. I already scattered console logs through the block and stepped through DevTools, yet the issue still slips past me, appearing only at random times and never in a predictable pattern.

Here’s what I need: a fresh set of experienced eyes to isolate the exact cause, propose a clean fix, and show me why it happens so I don’t run into the same trap elsewhere in the codebase. You’re welcome to suggest structural changes if the root turns out to be an async race, scope leak, or anything similarly subtle, but I’d like the solution to remain lightweight and in plain JavaScript (no heavy rewrites or framework swaps).

Deliverables:
• Corrected code (or patch) that guarantees the array/Set is populated every time.
• A brief walkthrough of the root cause and how your fix addresses it.
• Any relevant tips or guard-rails I can apply site-wide.

If you’ve untangled tricky, timing-dependent bugs before, tell me about it when you respond. Looking forward to finally stamping this one out." (client-provided description)