What are tasks in event loop
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A task is any javascript code/program which is scheduled to be run by the standard mechanisms such as initially starting to run a program, run an event callback, or an interval or timeout being fired. All these tasks are scheduled on a task queue. Below are the list of use cases to add tasks to the task queue,
When a new javascript program is executed directly from console or running by the element, the task will be added to the task queue.
When an event fires, the event callback added to task queue
When a setTimeout or setInterval is reached, the corresponding callback added to task queue