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How to raise a ValueError?
...trates how to raise a ValueError the way you want. By-the-way, I think find_last(), find_last_index(), or something simlar would be a more descriptive name for this function. Adding to the possible confusion is the fact that Python already has a container object method named __contains__() that does...
iOS - Dismiss keyboard when touching outside of UITextField
...TapGestureRecognizer(target: self, action: #selector(self.dismissKeyboard (_:)))
self.view.addGestureRecognizer(tapGesture)
For dismissKeyboard
@objc func dismissKeyboard (_ sender: UITapGestureRecognizer) {
aTextField.resignFirstResponder()
}
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How to call Android contacts list?
I'm making an Android app, and need to call the phone's contact list. I need to call the contacts list function, pick a contact, then return to my app with the contact's name. Here's the code I got on the internet, but it doesnt work.
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Ruby: Easiest Way to Filter Hash Keys?
...with just the choices in it.
choices = params.select { |key, value| key.to_s.match(/^choice\d+/) }
or you can use delete_if and modify the existing Hash e.g.
params.delete_if { |key, value| !key.to_s.match(/choice\d+/) }
or if it is just the keys and not the values you want then you can do:
p...
Keeping ASP.NET Session Open / Alive
...n alive as long as the user has the browser window open? Is it timed AJAX calls? I want to prevent the following: sometimes users keep their window open for a long time, then enter stuff, and on submit nothing works anymore because the server side session expired. I don't want to increase the timeou...
How do PHP sessions work? (not “how are they used?”)
...on files are usually stored in, say, /tmp/ on the server, and named sess_{session_id} . I have been looking at the contents and cannot figure out how they really work.
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How to read a single char from the console in Java (as the user types it)?
... typing it in Java? Is it possible? I've tried with these methods but they all wait for the user to press enter key:
5 An...
Node.js: printing to console without a trailing newline?
...ered May 27 '11 at 20:51
onteria_onteria_
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Design Patterns: Factory vs Factory method vs Abstract Factory
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All three Factory types do the same thing: They are a "smart constructor".
Let's say you want to be able to create two kinds of Fruit: Apple and Orange.
Factory
Factory is "fixed", in that you have just one implementation ...
w3wp process not found
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w3wp.exe won't show in the running process' unless there is actually an instance of the web application running.
Try to access your web page first, when it is displayed for the first time, try to attach your debugger. The process should now show up.
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