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How to set a Fragment tag by code?
I haven't found something like setTag(String tagName) method in the Fragment class. The only way to set a Fragment tag that I have found is by doing a FragmentTransaction and passing a tag name as parameter.
...
How to validate an email address using a regular expression?
...may not be exactly what you want to achieve. For example, it accepts these strings as valid e-mail addresses:
"user1@hotmail.com; user2@gmail.com"
"user1@hotmail.com; user2@gmail.com; user3@company.com"
"User Display Name user3@company.com"
"user4 @company.com"
In some of these cases, only the l...
JavaScript ternary operator example with functions
...nch, you have a muti-branched if/else tree, or multiple else/ifs in a long string.
The ternary operator is common when you're assigning a value to a variable based on a simple condition or you are making multiple decisions with very brief outcomes. The example you cite actually doesn't make sense,...
Should I hash the password before sending it to the server side?
...ng is that on connection to the client the server generates a salt (random string to be added before hashing) and stores it on the sockets variable, then it transmits this hash to the client. The client takes the users password, hashes it, adds the salt from the server and hashes the whole thing, be...
django urls without a trailing slash do not redirect
... request.path = request.path + '/'
# we don't need query string in path_info because it's in request.GET already
request.path_info = request.path
response = self.handler.get_response(request)
return response
...
How do I copy to the clipboard in JavaScript?
...u find any problems or have any suggestions for improving it.
// Copies a string to the clipboard. Must be called from within an
// event handler such as click. May return false if it failed, but
// this is not always possible. Browser support for Chrome 43+,
// Firefox 42+, Safari 10+, Edge and In...
Python: Get relative path from comparing two absolute paths
... part, you can just do
>>> ''.join(lson[len(lparent):])
It's a string, but you can of course use it as a constructor of an other Path object.
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How to keep a .NET console app running?
...
I prefer using the Application.Run
static void Main(string[] args) {
//Do your stuff here
System.Windows.Forms.Application.Run();
//Cleanup/Before Quit
}
from the docs:
Begins running a standard application message loop on the current thread, without a form....
Why doesn't Python have a sign function?
...se of floats. It would not work for integers or complex numbers, much less strings, and it wouldn't have the name you are looking for.
You ask "why", and the answer is "sign(x) isn't useful." You assert that it is useful. Yet your comments show that you do not know enough to be able to make that as...
How to dismiss keyboard for UITextView with return key?
...tView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {
if([text isEqualToString:@"\n"]) {
[textView resignFirstResponder];
return NO;
}
return YES;
}
Swift 4.0 update:
func textView(_ textView: UITextView, shouldChangeTextIn range:...