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What package naming convention do you use for personal/hobby projects in Java?
...ready familiar with the standard Java package naming convention of using a domain name to create a unique package name (i.e. package com.stackoverflow.widgets ). However, I've never seen any recommendations for how to choose package names for personal projects. I assume because this is because this...
Why avoid increment (“++”) and decrement (“--”) operators in JavaScript?
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Yeah, that's what I do too. Hard to go wrong, and easier for other people to figure out what you're doing.
– Nosredna
Jun 9 '09 at 17:46
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How would you do a “not in” query with LINQ?
...ections. I need to get a list of the items in the first list where Email does not exist in the second list. With SQL I would just use "not in", but I do not know the equivalent in LINQ. How is that done?
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How do I unlock a SQLite database?
How do I unlock the database so this will work?
35 Answers
35
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Invoke(Delegate)
...he answer to this question lies in how C# Controls work
Controls in Windows Forms are bound to a specific thread and are not
thread safe. Therefore, if you are calling a control's method from a
different thread, you must use one of the control's invoke methods to
marshal the call to the pr...
If strings are immutable in .NET, then why does Substring take O(n) time?
...gs, immutability and persistence
The short answer is: O(n) is O(1) if n does not grow large. Most people extract tiny substrings from tiny strings, so how the complexity grows asymptotically is completely irrelevant.
The long answer is:
An immutable data structure built such that operations on...
How to find out if an item is present in a std::vector?
All I want to do is to check whether an element exists in the vector or not, so I can deal with each case.
18 Answers
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How is the Linux kernel tested ?
How do the Linux kernel developers test their code locally and after they have it committed? Do they use some kind of unit testing, build automation? test plans?
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How do I implement a callback in PHP?
...is namespaced, the string must contain the fully-qualified name. E.g. ['Vendor\Package\Foo', 'method']
call_user_func does not support passing non-objects by reference, so you can either use call_user_func_array or, in later PHP versions, save the callback to a var and use the direct syntax: $cb();
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How do I define global variables in CoffeeScript?
...es as properties of the global object.
attach them as properties on window
This means you need to do something like window.foo = 'baz';, which handles the browser case, since there the global object is the window.
Node.js
In Node.js there's no window object, instead there's the exports objec...