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Java: Instanceof and Generics
... attempt to cast into E eg.
public int indexOf(Object arg0){
try{
E test=(E)arg0;
return doStuff(test);
}catch(ClassCastException e){
return -1;
}
}
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What's the recommended approach to resetting migration history using Django South?
...jango (1.1.2) which are starting to consume quite a bit of time in my unit tests. I would like to reset the baseline and start a fresh set of migrations. I've reviewed the South documentation , done the usual Google/Stackoverflow searching (e.g. "django south (reset OR delete OR remove) migration h...
How to use Git Revert
...e clear, with a log like this:
# git log --oneline
cb76ee4 wrong
01b56c6 test
2e407ce first commit
Using git revert cb76ee4 will by default bring your files back to 01b56c6 and will add a further commit to your history:
8d4406b Revert "wrong"
cb76ee4 wrong
01b56c6 test
2e407ce first commit
gi...
How do I target only Internet Explorer 10 for certain situations like Internet Explorer-specific CSS
...an be spoofed.
To target Internet Explorer 9, 10 and 11 (Note: also the latest Chrome):
@media screen and (min-width:0\0) {
/* Enter CSS here */
}
To target Internet Explorer 10:
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
/* IE10+ CSS here */
}
To target ...
Efficient method to generate UUID String in JAVA (UUID.randomUUID().toString() without the dashes)
...hines which you might not need. They have time-based method which is the fatest one among all methods. Yes, synchronized is not necessary here cause' I realized SecureRandom is thread safe already. Why would declaring static final on SecureRandom would decrease the entropy? I am curious :) There ar...
Why does git-rebase give me merge conflicts when all I'm doing is squashing commits?
...have to edit it, but I believe I know what your problem is.
Your toy repo test case has a merge in it - worse, it has a merge with conflicts. And you're rebasing across the merge. Without -p (which doesn't totally work with -i), the merges are ignored. This means that whatever you did in your confl...
How to ISO 8601 format a Date with Timezone Offset in JavaScript?
...are needed
// sample output: 2013-07-01T17:55:13-07:00
This is a well-tested, cross-browser solution, and has many other useful features.
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Can you call Directory.GetFiles() with multiple filters?
... but it's actually (much) slower then the accepted answer. Check this SpeedTest
– OttO
Feb 13 '13 at 22:37
Thanks. Gla...
What is JavaScript's highest integer value that a number can go to without losing precision?
...se, it's more efficient by about 28.559999999968312 years :), along with a test fiddle:
/**
* Checks if adding/subtracting one to/from a number yields the correct result.
*
* @param number The number to test
* @return true if you can add/subtract 1, false otherwise.
*/
var canAddSubt...
How to check if a file exists in a folder?
... log.Info(fi.Exists);
or File.Exists Method:
string curFile = @"c:\temp\test.txt";
Console.WriteLine(File.Exists(curFile) ? "File exists." : "File does not exist.");
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