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How to avoid null checking in Java?
...y either don't know or don't trust the contracts they are participating in and defensively overcheck for nulls. Additionally, when writing their own code, they tend to rely on returning nulls to indicate something thus requiring the caller to check for nulls.
To put this another way, there are two...
How to check for DLL dependency?
Sometimes when I'm doing a little project I'm not careful enough and accidentally add a dependency for a DLL that I am not aware of. When I ship this program to a friend or other people, "it doesn't work" because "some DLL" is missing. This is of course because the program can find the DLL on my sy...
What to use instead of “addPreferencesFromResource” in a PreferenceActivity?
...ddPreferencesFromResource(int preferencesResId) is marked deprecated in Android's documentation ( Reference Entry ).
6 ...
What is compiler, linker, loader?
I wanted to know in depth meaning and working of compiler, linker and loader.
With reference to any language preferably c++.
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Force line-buffering of stdout when piping to tee
...p tee output.txt
(-p is for pipeline mode where unbuffer reads from stdin and passes it to the command in the rest of the arguments)
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What's wrong with Groovy multi-line String?
... The first assigns test to a, the second two try to make "test" positive (and this is where it fails)
With the new String constructor method, the Groovy parser is still in the constructor (as the brace hasn't yet closed), so it can logically join the three lines together into a single statement
F...
How To Accept a File POST
...
see http://www.asp.net/web-api/overview/formats-and-model-binding/html-forms-and-multipart-mime#multipartmime, although I think the article makes it seem a bit more complicated than it really is.
Basically,
public Task<HttpResponseMessage> PostFile()
{
HttpR...
How to use the 'main' parameter in package.json?
...mary entry point to your
program. That is, if your package is named foo, and a user installs
it, and then does require("foo"), then your main module's exports
object will be returned.
This should be a module ID relative to the root of your package
folder.
For most modules, it makes...
How to access the correct `this` inside a callback?
I have a constructor function which registers an event handler:
11 Answers
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How do you rename a MongoDB database?
There's a typo in my MongoDB database name and I'm looking to rename the database.
10 Answers
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