On Jan 3, 2015, at 10:25 AM, schone wrote:
>
> I'm trying to wait or sleep a fixed amount of time inside a while and/or for
> loop in node.js (I'm trying to mimic delayed random data). As an example, I
> have the following structure:
>
> var startIndex = 0,
> endIndex = 10,
> incrementIndex = 1;
> while ( startIndex < endIndex ) {
>
> for ( var i = 0; i < array.length; i++ ) {
> // do stuff
> // sleep here?
> }
> // do stuff
> startIndex = startIndex + incrementIndex;
> // sleep here?
> }
>
> Has anyone got any tips for how you would implement a setTimeout or similar
> function in node.js with the above structure?
You are trying to write synchronous code. Don't. Write asynchronous code. Use
the built-in JavaScript setTimeout function, etc. If you are trying to simulate
data arriving from an external service after an unpredictable delay, that data
will certainly arrive asynchronously as well. Your current code tries to
process all the data at once. Rewrite your code so that you have a
self-contained function that can process a single unit of work, then arrange to
call that function whenever the data arrives (or is simulated to arrive).
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