Differentiate between process.nexttick() and setimmediate()?
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Answer / Chandan Kumar Roy
In Node.js, both process.nextTick() and setImmediate() are used for deferring the execution of callbacks. However, they have some differences:n
1. Callback Queue: Process.nextTick() pushes its callback onto the next tick of the event loop's inner loop, while setImmediate() pushes its callback onto the next iteration of the event loop's outer poll phase.n
2. Execution Order: Because process.nextTick() is executed before I/O events and timers (on the same loop iteration), it is best suited for optimizing tight inner loops. In contrast, setImmediate() is suitable for non-blocking I/O operations and long-running tasks.n
3. Availability: Process.nextTick() has been available since Node.js 0.9.0, while setImmediate() was added in version 0.11.1.
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