Reading Notes for Day of 401:

Socket.io Chat Example

• Explain to a non-technical recruiter what the Chat Example (above) does.
• What proof of life are we getting on the backend from the above app?
• Socket.IO gives us the i0.emit() method to send an event to everyone. What flag would you use if you want to send a message to everyone except for a certain emitting socket?

Rooms

• What is a room and how might a room be useful?
• How do you join a room?
• How do you leave a room?

Namespaces

• What is a Namespace and what does it allow you to do?
• Each namespace potentially has its own what? (hint: 3 things)
• Discuss a possible use case for separate namespaces

Bookmark and Review

Socket.io Emit Cheatsheet

Things I want to know more about:

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