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Why is XOR the default way to combine hashes?
...tter than and and or, but that doesn't say much.
xor is symmetric, so the order of the elements is lost. So "bad" will hash combine the same as "dab".
xor maps pairwise identical values to zero, and you should avoid mapping "common" values to zero:
So (a,a) gets mapped to 0, and (b,b) also gets ...
Redirect parent window from an iframe action
...frame attempting navigation of the top-level window is sandboxed, but the 'allow-top-navigation' flag is not set.
– Bjarte Aune Olsen
Mar 18 '15 at 9:09
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How to remove css property in jQuery
...perspectives. I was frustrated trying to remove one of the perspectives in order to fix the anti alias issue, this post saved my day! Thank you!
– Richard Yan
Sep 29 '17 at 9:46
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Why does pylint object to single character variable names?
...ventions and using pylint to make my code more pythonic, but I'm puzzled by the fact that pylint doesn't like single character variable names. I have a few loops like this:
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How do I get the dialer to open with phone number displayed?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Creating a UICollectionView programmatically
...wDataSource,UICollectionViewDelegateFlowLayout>
{
UICollectionView *_collectionView;
}
Implementation File:--
- (void)viewDidLoad
{
[super viewDidLoad];
self.view = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UICollectionViewFlowLayout *layout=[[UICollect...
Difference between getDefaultSharedPreferences and getSharedPreferences
...es a default preference-file name. This default is set per application, so all activities in the same app context can access it easily as in the following example:
SharedPreferences spref = PreferenceManager.getDefaultSharedPreferences(this);
if (spref.contains("email")) {
String sEmailAdd...
Creating an empty bitmap and drawing though canvas in Android
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Creating an empty list in Python
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How do I disable log messages from the Requests library?
...ntiate a class, then you must put this snippet after creating the class in order to print its name.
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