Event loop
Meaning in software engineering, with examples
In software engineering, event loop means: A runtime mechanism that waits for events and schedules tasks or callbacks, so many operations can be handled without blocking the program.
In Turkish: olay döngüsü
How it is used
Common in JavaScript, browsers, UI apps, and asynchronous servers. It affects task order, responsiveness, and how timers or Promises are processed.
Example sentences
The page felt frozen because a long calculation blocked the event loop and delayed every click handler in the dashboard.
Here the event loop is the scheduler for pending work, so one heavy calculation makes the interface react late.
When debugging the chat client, we traced the event loop to understand why the reconnect timer fired so late after sleep.
In this example, the term refers to the scheduling flow that determines when asynchronous callbacks actually get CPU time.
Common collocations
- block the event loop
- event loop delay
- event loop tick
Related terms
More terms: Programming Concepts
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