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Catching all javascript unhandled exceptions
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You can do this by using window.onerror method.
window.onerror = function myErrorHandler(errorMsg, url, lineNumber) {
alert("Error occured: " + errorMsg);//or any message
return false;
}
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Installing PG gem on OS X - failure to build native extension
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Same error for me and I didn't experience it until I downloaded OS X 10.9 (Mavericks). Sigh, another OS upgrade headache.
Here's how I fixed it (with homebrew):
Install another build of Xcode Tools (typing brew update in the te...
What are valid values for the id attribute in HTML?
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The error that Augustus pointed out is still present. In your example, if you have id="firstName" in either HTML 4 or HTML 5 and #FirstName { color: red } in CSS, only a buggy browser will set the element's color to red.
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How do I drop a foreign key constraint only if it exists in sql server?
I can drop a table if it exists using the following code but do not know how to do the same with a constraint:
10 Answers
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Is there a ceiling equivalent of // operator in Python?
... % b) for integers (this may be less reliable with floats due to round-off error). The step with bool(r) adds one to the quotient whenever there is a non-zero remainder.
Solution 3: Adjust the numerator before the division
def ceiling_division(n, d):
return (n + d - 1) // d
Translate the nu...
Easy way to test a URL for 404 in PHP?
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If you are using PHP's curl bindings, you can check the error code using curl_getinfo as such:
$handle = curl_init($url);
curl_setopt($handle, CURLOPT_RETURNTRANSFER, TRUE);
/* Get the HTML or whatever is linked in $url. */
$response = curl_exec($handle);
/* Check for 404 (fil...
InputStream from a URL
...alusC
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How do you calculate log base 2 in Java for integers?
...w);
if (pow != log(x, base))
System.out.println(String.format("error at %d^%d", base, pow));
if(pow!=0 && (pow-1) != log(x-1, base))
System.out.println(String.format("error at %d^%d-1", base, pow));
}
public static void main(String[] args) {
for (int base = 2; ba...
How to edit log message already committed in Subversion?
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if /I not '%propname%'=='svn:log' goto ERROR_PROPNAME
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:: Only allow modifications to svn:log (no addition/overwrite or deletion)
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Check if my app has a new version on AppStore
...ictionary* lookup = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
if ([lookup[@"resultCount"] integerValue] == 1){
NSString* appStoreVersion = lookup[@"results"][0][@"version"];
NSString* currentVersion = infoDictionary[@"CFBundleShortVersionString"];
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