Details and Options

task can be either a TaskObject or task identifier string for a specific task.
TaskWait[task] blocks until task is completely finished, then returns the TaskObject[…] representing task.
For a scheduled task, TaskWait[task] waits until all instances of the task specified in the schedule have been executed.
The following option can be given:
TimeConstraint Infinity maximum time to wait before returning
TaskWait has attribute Listable.

Examples

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Start a task in the current session and wait until it finishes:

Wait for a task specified by its UUID:

Start a task in a separate local kernel and wait until it finishes:

Starting an asynchronous task and waiting until it completes is equivalent to running the task synchronously:

Wait for an asynchronous task to complete and then continue, even if it is not done:

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