delay

"delay" returns a promise which resolves only after the specified
number of seconds. This uses the R event loop via later.
In an <code>[async]</code> construct you can use <code>await(delay(secs))</code> to yield
control, for example if you need to poll in a loop.

Write sequential-looking code that pauses and resumes.
gen() creates a generator, an iterator that returns a
value and pauses each time it reaches a yield() call.
async() creates a promise, which runs until it reaches
a call to await(), then resumes when information is available.
These work similarly to generator and async constructs
from 'Python' or 'JavaScript'. Objects produced are
compatible with the 'iterators' and 'promises' packages.
Version 0.3 supports on.exit, single-step debugging,
stream() for making asynchronous iterators, and
delimited goto() in switch() calls.

Peter Meilstrup

async

Coroutines: Generators / Yield, Async / Await, and Streams

delay function

<dl><dt>secs</dt>
<dd>The promise will resolve after at least this many seconds.</dd>
<dt>expr</dt>
<dd>The value to resolve with; will be forced after the delay.</dd></dl>

Arguments

Asynchronous pause. — delay

<dl>

<dt>secs</dt>
<dd>The promise will resolve after at least this many seconds.</dd>


<dt>expr</dt>
<dd>The value to resolve with; will be forced after the delay.</dd>

</dl>

delay: Asynchronous pause.

Description

Usage

Value

Arguments

Examples