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AngularJS: how to implement a simple file upload with multipart form?
...om AngularJS to a node.js server,
the form should contain a JSON object in one part and an image in the other part,
(I'm currently posting only the JSON object with $resource)
...
How to make a great R reproducible example
...upvotes.
Producing a minimal dataset
For most cases, this can be easily done by just providing a vector/data frame with some values. Or you can use one of the built-in datasets, which are provided with most packages.
A comprehensive list of built-in datasets can be seen with library(help = "datase...
How to create an empty file at the command line in Windows?
....cmd 0 # to create a file on a mapped drive
Nomad mentions an original one:
C:\Users\VonC\prog\tests>aaaa > empty_file
'aaaa' is not recognized as an internal or external command, operable program or batch file.
C:\Users\VonC\prog\tests>dir
Folder C:\Users\VonC\prog\tests
27/11/201...
How to unescape HTML character entities in Java?
...
The libraries mentioned in other answers would be fine solutions, but if you already happen to be digging through real-world html in your project, the Jsoup project has a lot more to offer than just managing "ampersand pound FFFF semicolon" thi...
Why is the order in dictionaries and sets arbitrary?
I don't understand how looping over a dictionary or set in python is done by 'arbitrary' order.
6 Answers
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How do I set the time zone of MySQL?
On one server, when I run:
19 Answers
19
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Android: ProgressDialog.show() crashes with getApplicationContext
... returning just points to null. I think you're having a problem similar to one I had in that some of the code in the onCreate() is being run before the window is actually done being built. This is going to be a hack, but try launching a new Thread in a few hundred milliseconds (IIRC: 300-400 seemed ...
Java - Method name collision in interface implementation
...
No, there is no way to implement the same method in two different ways in one class in Java.
That can lead to many confusing situations, which is why Java has disallowed it.
interface ISomething {
void doSomething();
}
interface ISomething2 {
void doSomething();
}
class Impl implements ...
Why 0 is true but false is 1 in the shell?
...
It's a convention, but a particularly useful one when you think about it. In general, if a program succeeds that's all you need to know. If it fails, however, you might need to know all kinds of information about the failure - why it happened, how to fix it, etc. Havi...
Why doesn't Java offer operator overloading?
...ces only adds to the confusion of operator overloading. As @Sebastian mentioned, Java and C# both have to deal with value and reference equality separately -- operator+ would likely deal with values and objects, but operator= is already implemented to deal with references.
In C++, you should only b...