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How to test if list element exists?
...R! One might want more complex things (like testing if $mylist[[12]]$out$mcerror is defined) which would currently be complicated as hell.
– TMS
Sep 11 '14 at 9:51
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Suppressing “warning CS4014: Because this call is not awaited, execution of the current method conti
... I found a SupressMessage removed my warning from my Visual Studio "Error List" but not "Output" and #pragma warning disable CSxxxx looks more ugly than the discard ;)
– David Savage
Aug 24 '18 at 9:11
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“You are on a branch yet to be born” when adding git submodule
...ory, and when I attempt to add this particular repo Git gives me a strange error I've never seen before:
4 Answers
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When to use .First and when to use .FirstOrDefault with LINQ?
...
First()
Returns first element of a sequence.
It throw an error when There is no element in the result or source is null.
you should use it,If more than one element is expected and you want only first element.
FirstOrDefault()
Returns first element of a sequence, or a defa...
Deserializing JSON to .NET object using Newtonsoft (or LINQ to JSON maybe?)
... but should it be JToken, or JObject? The above code is still throwing the error "Error reading JObject from JsonReader" every now and then.
– TYRONEMICHAEL
Feb 3 '12 at 8:15
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jQuery callback on image load (even when the image is cached)
...
You can also use this code with support for loading error:
$("img").on('load', function() {
// do stuff on success
})
.on('error', function() {
// do stuff on smth wrong (error 404, etc.)
})
.each(function() {
if(this.complete) {
$(this).load();
} else if(th...
Proper use of beginBackgroundTaskWithExpirationHandler
...nBackgroundUpdateTask];
NSURLResponse * response = nil;
NSError * error = nil;
NSData * responseData = [NSURLConnection sendSynchronousRequest: request returningResponse: &response error: &error];
// Do something with the result
[self endBackground...
How to make “if not true condition”?
...
I think it can be simplified into:
grep sysa /etc/passwd || {
echo "ERROR - The user sysa could not be looked up"
exit 2
}
or in a single command line
$ grep sysa /etc/passwd || { echo "ERROR - The user sysa could not be looked up"; exit 2; }
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How to build & install GLFW 3 and use it in a Linux project
...rsion 4.7, or the upcoming version 4.8... Info on that here.
Then fix your errors if you typed the program by hand or tried to be "too clever" and something didn't work... Then link it using this monster! g++ main.o -o main.exec -lGL -lGLU -lglfw3 -lX11 -lXxf86vm -lXrandr -lpthread -lXi So you see, ...
Showing line numbers in IPython/Jupyter Notebooks
Error reports from most language kernels running in IPython/Jupyter Notebooks indicate the line on which the error occurred; but (at least by default) no line numbers are indicated in Notebooks.
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