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How to set environment variables from within package.json
...t variable in a natively cross platform fashion, but the key is it is used by npm in an ad hoc and one-time fashion, just for the npm script execution. (It's not set or exported for future reference.) As long as you're running your command from the npm script, there's no issue. Also, the "&&a...
What's the difference between Html.Label, Html.LabelFor and Html.LabelForModel
...;/label>
Html.LabelFor gives you a label for the property represented by the provided expression (typically a model property):
// Model
public class MyModel
{
[DisplayName("A property")]
public string Test { get; set; }
}
// View
@model MyModel
@Html.LabelFor(m => m.Test)
// Outpu...
Require either of two arguments using argparse
...
HEy @ijoseph, this answer is prett old by now. I'm not sure what the answer was any more. It probably has been removed by now. Sorry for that!
– jlengrand
Apr 13 '18 at 9:13
...
How to define multiple name tags in a struct
...
It says in the documentation of the reflect package:
By convention, tag strings are a concatenation of optionally space-separated key:"value" pairs. Each key is a non-empty string consisting of non-control characters other than space (U+0020 ' '), quote (U+0022 '"'), and colon ...
What is a smart pointer and when should I use one?
...o describes what was 'good' at the time, which was smart pointers provided by the Boost library. Since C++11, the standard library has provided sufficient smart pointers types, and so you should favour the use of std::unique_ptr, std::shared_ptr and std::weak_ptr.
There was also std::auto_ptr. It ...
How do I hide .class files from the Open Resource dialog in Eclipse?
... '.class' files, they probably aren't being marked as derived. If they're by themselves in their own folder hierarchy you can fix this by right-clicking the root folder to edit folder properties, and check the 'Derived' checkbox. If they're mixed with your '.java' files...tough luck, you'll need t...
How to make a cross-module variable?
...l from any other module that includes __builtin__ -- which is all of them, by default.
a.py contains
print foo
b.py contains
import __builtin__
__builtin__.foo = 1
import a
The result is that "1" is printed.
Edit: The __builtin__ module is available as the local symbol __builtins__ -- that's...
How can you get the Manifest Version number from the App's (Layout) XML variables?
...version could be stored in a resource string, and placed into the manifest by:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.somepackage"
android:versionName="@string/version" android:versionCode="20">
One could create a custom view, and place it...
What is the difference between new/delete and malloc/free?
...
Returns a void*
Returns NULL on failure
Must specify the size required in bytes.
Allocating array requires manual calculation of space.
Reallocating larger chunk of memory simple (No copy constructor to worry about)
They will NOT call new/delete
No way to splice user code into the allocation sequen...
Converting string to byte array in C#
...
If you already have a byte array then you will need to know what type of encoding was used to make it into that byte array.
For example, if the byte array was created like this:
byte[] bytes = Encoding.ASCII.GetBytes(someString);
You will need...