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.NET unique object identifier
...us value A will be changed to value B, so as far as safe code is concerned it's still a unique ID.
If the objects involved are under your control, you could create a mapping using weak references (to avoid preventing garbage collection) from a reference to an ID of your choosing (GUID, integer, wha...
Why does std::getline() skip input after a formatted extraction?
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Why does this happen?
This has little to do with the input you provided yourself but rather with the default behavior std::getline() exhibits. When you provided your input for the name (std::cin >> name), you not only submitted the following character...
Move the most recent commit(s) to a new branch with Git
I'd like to move the last several commits I've committed to master to a new branch and take master back to before those commits were made. Unfortunately, my Git-fu is not strong enough yet, any help?
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Declaring Multiple Variables in JavaScript
In JavaScript, it is possible to declare multiple variables like this:
17 Answers
17
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Cookies vs. sessions
...a couple of months ago. For the sake of creating a login system for my website, I read about cookies and sessions and their differences (cookies are stored in the user's browser and sessions on the server). At that time, I preferred cookies (and who does not like cookies?!) and just said: "who cares...
Is null check needed before calling instanceof?
...on is
not null and the reference could be
cast to the ReferenceType
without raising a ClassCastException.
Otherwise the result is false."
So if the operand is null, the result is false.
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How do I return multiple values from a function? [closed]
The canonical way to return multiple values in languages that support it is often tupling .
14 Answers
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Change type of varchar field to integer: “cannot be cast automatically to type integer”
...ertain field contains the type " character varying ". I'm trying to change it to " Integer " but it gives an error that casting is not possible.
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What is the native keyword in Java for?
While playing this puzzle (It's a Java keyword trivia game), I came across the native keyword.
10 Answers
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How do I set a Windows scheduled task to run in the background? [closed]
... permissions to the process, and also seems to hide the command window.
It's not an obvious solution, but to make a Scheduled Task run in the background, change the User running the task to "SYSTEM", and nothing will appear on your screen.
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