Why does my useEffect run twice?
React 18 Strict Mode mounts, unmounts, then mounts again in development so you can catch missing cleanup.
For software development fellowships
Study Circle turns your cohort's questions into a searchable knowledge base. Nobody re-asks, nobody re-explains, and nobody's afraid to ask.
We surveyed 7 fellows before writing a line of code. Here's what they told us.
71.4% have held back from asking a question publicly.
Find an answer in seconds instead of scrolling weeks of chat history
Post with a title, full detail, and tags - no more losing context to a one line message
Follow up questions and clarifications; stay attached to the original post
The best answer rises to the top, so future fellows see it first
A trusted checkmark so you know an answer is right, not just popular
Check if your question's already been answered, most have.
Post it once, with tags, so the next fellow finds it in seconds.
Comments and upvotes surface the right answer, for good.
85.7%
would search before asking in chat
7 / 7
fellows rely on chat or DMs for help today
100%
want keyword search as a core feature
2
fellows already volunteered to seed content