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Detect when an image fails to load in Javascript
...) {
var tester=new Image();
tester.onload=imageFound;
tester.onerror=imageNotFound;
tester.src=URL;
}
function imageFound() {
alert('That image is found and loaded');
}
function imageNotFound() {
alert('That image was not found.');
}
testImage("http://foo.com/bar.jpg");
...
Is there any way to ignore INSTALL_FAILED_VERSION_DOWNGRADE on application install with the Android
It seems like the most recent Android 4.2 has introduced this error condition on installation when one attempts to install an APK with a lower version. In prior versions of Android, one would be able to install older APK's simply via adb install -r <link to APK> . For debugging purposes, I f...
Mathematical functions in Swift
...
In the Swift playground, I get the error: No such module 'Cocoa'
– David Poxon
Jun 11 '14 at 10:31
...
file_put_contents(meta/services.json): failed to open stream: Permission denied
... This should be sudo chmod -R 777 app/storage. to avoid permission error.
– Olaitan Mayowa
Oct 8 '14 at 10:10
5
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Why am I getting 'Assembly '*.dll' must be strong signed in order to be marked as a prerequisite.'?
...s is that you're not working with strongly named assemblies. I've had this error when two projects reference slightly different versions of the same assembly and a more dependent project references these projects. The resolution in my case was to remove the key and version information from the assem...
Django “login() takes exactly 1 argument (2 given)” error
....com%2fquestions%2f1134476%2fdjango-login-takes-exactly-1-argument-2-given-error%23new-answer', 'question_page');
}
);
Post as a guest
Name
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How to detect unused methods and #import in Objective-C
... approach is just to comment out import statements until you get a compile error/warning.
Unused Objective-C methods are much more difficult to detect than unused C functions because messages are dispatched dynamically. A warning or error can tell you that you have a potential problem, but the lack...
Usage of EnsureSuccessStatusCode and handling of HttpRequestException it throws
...tim English message literal here.
Pros
Logs the content for an 5xx server error
Sometimes, a server error is actually a client error in disguise, such as a client using a deprecated endpoint that finally got shut off.
Makes it easier to uncover errors when writing integration tests using Configu...
Node.js check if path is file or directory
...)
stats.isFIFO()
stats.isSocket()
NOTE:
The above solution will throw an Error if; for ex, the file or directory doesn't exist.
If you want a true or false approach, try fs.existsSync(dirPath) && fs.lstatSync(dirPath).isDirectory(); as mentioned by Joseph in the comments below.
...
What's the difference between compiled and interpreted language?
... execution.
Memory requirement is more due to the creation of object code.
Error are displayed after the entire program is compiled
Source code ---Compiler ---Machine Code ---Output
Interpreter Language:
Takes single instruction as single input and executes instructions.
Intermediate Object code...