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Nullable vs. int? - Is there any difference?
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The ? form is just a shorthand for the full type. Personal preference is the only reason to choose one over the other.
Full details here.
The syntax T? is shorthand for
Nullable<T>, where T is a value type.
The two ...
user authentication libraries for node.js?
...ion succeeds or fails.
For example, here is the two-step process to setup form-based (username and password) authentication:
passport.use(new LocalStrategy(
function(username, password, done) {
// Find the user from your DB (MongoDB, CouchDB, other...)
User.findOne({ username: username, ...
GitHub: Reopening a merged pull request
...est
Clicking the 'Submit and re-open' button which appeared on the comment form.
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When should I use git pull --rebase?
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What Subversion just did, was essentially "pull --rebase". The act of re-formulating your local changes to be relative to the newer version is the "rebasing" part of it. If you had done "svn diff" prior to the failed commit attempt, and compare the resulting diff with the output of "svn diff" afte...
Purpose of #!/usr/bin/python3
...e supported virtual commands are:
/usr/bin/env python
The /usr/bin/env form of shebang line has one further special property. Before looking for installed Python interpreters, this form will search the executable PATH for a Python executable. This corresponds to the behaviour of the Unix env pro...
How do you properly use namespaces in C++?
...re used, not namespaces. I'm used to putting classes that work together to form a complete object into packages, and then reusing them later from that package. But now I'm working in C++.
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What does the question mark and the colon (?: ternary operator) mean in objective-c?
...e cannot. ie: Inside a condition or method parameter. [NSString stringWithFormat: @"Status: %@", (statusBool ? @"Approved" : @"Rejected")] ...which is a great use for preprocessor constants: #define statusString (statusBool ? @"Approved" : @"Rejected") ...then: [NSString stringWithFormat: @"Sta...
Code signing certificate for open-source projects?
...Browse to Test ID and OpenSource Code Signing certificates, and submit the form.
The certificate will appear under Activate Certificates. Click Activate.
Go through the activation wizard. For Organization enter Open Source Developer. For Organizational Unit, enter Software Publishing.
You'll get an ...
How can I programmatically generate keypress events in C#?
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The question is tagged WPF but the answers so far are specific WinForms and Win32.
To do this in WPF, simply construct a KeyEventArgs and call RaiseEvent on the target. For example, to send an Insert key KeyDown event to the currently focused element:
var key = Key.Insert; ...
URL Encode a string in jQuery for an AJAX request
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Try encodeURIComponent.
Encodes a Uniform Resource Identifier (URI) component by replacing each instance of certain characters by one, two, three, or four escape sequences representing the UTF-8 encoding of the character (will only be four escape sequences for c...