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A good solution for await in try/catch/finally?
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If you need to use async error handlers, I'd recommend something like this:
Exception exception = null;
try
{
...
}
catch (Exception ex)
{
exception = ex;
}
if (exception != null)
{
...
}
The problem with synchronously blocking on async cod...
Fix a Git detached head?
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Why does this error occur in the first place? This is one of the things I hate git for - totally random behavior at times. Never had such problems with Mercurial.
– Violet Giraffe
Oct 7 '14 at 20:36
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callback to handle completion of pipe
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Here's a solution that handles errors in requests and calls a callback after the file is written:
request(opts)
.on('error', function(err){ return callback(err)})
.pipe(fs.createWriteStream(filename))
.on('finish', function (err) {
ret...
In log4j, does checking isDebugEnabled before logging improve performance?
...g statements when the production system is running at log level of INFO or ERROR
– AztecWarrior_25
Mar 10 '18 at 0:51
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How to add images in select list?
... @RousseauAlexandre checking the console on that other site I see 403 errors for author's content. I sent him a message about it since complaining here will not do any good.
– jerrygarciuh
Aug 27 '16 at 17:07
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Guards vs. if-then-else vs. cases in Haskell
...turn ()
handle (ExitFailure code)
| code < 0 = putStrLn . ("internal error " ++) . show . abs $ code
| otherwise = putStrLn . ("user error " ++) . show $ code
BTW. As a style tip, always make a newline after a = or before a | if the stuff after the =/| is too long for one line, o...
Read file line by line using ifstream in C++
...s(line);
int a, b;
if (!(iss >> a >> b)) { break; } // error
// process pair (a,b)
}
You shouldn't mix (1) and (2), since the token-based parsing doesn't gobble up newlines, so you may end up with spurious empty lines if you use getline() after token-based extraction got ...
SQLite - UPSERT *not* INSERT or REPLACE
...ould
Begin a transaction
Try an insert
Check for primary key violation error
if we got an error do the update
Commit
This way you avoid the select and you are transactionally sound on Sqlite.
share
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How can I get the full object in Node.js's console.log(), rather than '[Object]'?
...ike it would occur with DOM objects, for example. Stringify will throw an "Error: Converting circular structure to JSON".
– Ignacio Lago
Jan 17 '14 at 16:47
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Null coalescing in powershell
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@BrainSlugs83 The error you're seeing in strict mode is unrelated to the null coalescing options presented. It is just the standard, Powershell checking that a variable is defined first. If you set $myval = $null before doing the test, the er...