Don't make a call to a module function which doesn't exist.
I really don't see this as being an actual problem. Read the module
documentation, they'll tell you what the module exposes. If you're worried
about it's API changing and getting a different version when deploying, use
stricter version ranges.
On Monday, March 26, 2012 7:49:57 AM UTC-7, 0x80 wrote:
>
> I am standardizing all my callbacks to do proper exception handling, but
> the only type of exceptions I can't seem to catch in a good way are the
> ones illustrated below. When I make a call to a module function which
> doesn't exist the exception is not caught anywhere even though I have the
> uncaughtExeption handler.
>
> Can anyone explain my what is the best way to catch this, and why this
> exception isn't reported to me? The only solution I found is to put a
> try/catch phrase around the module function call, but this is not a proper
> solution, because you make these kind of errors by accident. I don't want
> to put a try/catch clause around every module function I call just to make
> sure i don't have a typo.
>
> These kind of errors are really annoying me since I don't get any
> notification so often I am searching in the wrong places.
>
> Errorfun is just an empty module in this example.
>
> Thijs
>
>
> var assert = require('assert');
> var errorfun = require('./errortestmodule');
> var step = require('step');
>
> process.on('uncaughtException', function(err) {
> console.log("___________ UNCAUGHT _____________\n");
> console.log(err.message);
> console.log(err.stack);
> });
>
> process.on('exit', function () {
> console.log('About to exit.');
> });
>
> function callNonexistant(callback){
> setTimeout(errorfun.nonexitant, 1000);
> }
>
> function doSomethingAsync(callback){
> step(
> function(){
> callNonexistant(this);
> },
> function(err){
> if(err) return callback(err);
> callback(null);
> }
> );
> }
>
> function myCallback(err, result){
> if(err) throw err;
> console.log("Finished and happy");
> }
>
>
> doSomethingAsync(myCallback);
>
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