Node.js - Timers and Scheduling
You want to run a callback immediately after the current operation but before I/O events. Which should you use?
You want to run a callback immediately after the current operation but before I/O events. Which should you use?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Identify timing of process.nextTick
It runs callbacks immediately after the current operation, before I/O.Step 2: Compare with other timers
setImmediate runs after I/O, setTimeout after delay, clearImmediate cancels.Final Answer:
process.nextTick() -> Option DQuick Check:
Immediate post-operation callback = process.nextTick [OK]
Quick Trick: Use process.nextTick for immediate post-operation callbacks [OK]
Common Mistakes:
- Choosing setImmediate for immediate callbacks
- Confusing clearImmediate with scheduling
- Using setTimeout without delay
Master "Timers and Scheduling" in Node.js
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