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What are the benefits to marking a field as `readonly` in C#?
...onstant declared with the const modifier, which must have its value set at compile time. Using readonly you can set the value of the field either in the declaration, or in the constructor of the object that the field is a member of.
Also use it if you don't want to have to recompile external DLLs ...
Mixing C# & VB In The Same Project
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No, you can't. An assembly/project (each project compiles to 1 assembly usually) has to be one language. However, you can use multiple assemblies, and each can be coded in a different language because they are all compiled to CIL.
It compiled fine and didn't complain becaus...
How to tag an older commit in Git?
...ur production code is the same as the beginning repository, but we've made commits since then.
A tag at the beginning would allow us to "roll back" production to a known, stable state.
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How do you search an amazon s3 bucket?
...nds of files in it. How can I search the bucket? Is there a tool you can recommend?
21 Answers
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How to throw a C++ exception
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Simple:
#include <stdexcept>
int compare( int a, int b ) {
if ( a < 0 || b < 0 ) {
throw std::invalid_argument( "received negative value" );
}
}
The Standard Library comes with a nice collection of built-in exception objects you can t...
Is there a constraint that restricts my generic method to numeric types?
...re in an interview with Bruce Eckel:
And it's not clear that the added complexity is worth the small yield that you get. If something you want to do is not directly supported in the constraint system, you can do it with a factory pattern. You could have a Matrix<T>, for example, and in tha...
How to un-submodule a Git submodule?
...u have backup!!
git add submodule_path # will add files instead of commit reference
git commit -m "remove submodule"
If you also want to preserve the history of the submodule, you can do a small trick: "merge" the submodule into the main repository so that the result will be the same as it...
CSS background image to fit width, height should auto-scale in proportion
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There is a CSS3 property for this, namely background-size (compatibility check). While one can set length values, it's usually used with the special values contain and cover. In your specific case, you should use cover:
body {
background-image: url(images/background.svg);
...
All falsey values in JavaScript
...f (document.all) used to be a popular way to detect IE, before conditional comments. See Why is document.all falsy? for details
"Falsey" simply means that JavaScript's internal ToBoolean function returns false. ToBoolean underlies !value, value ? ... : ...; and if (value). Here's its official spe...
Make anchor link go some pixels above where it's linked to
...s already on the page, it doesn't for example when the user visits example.com/#anchor from example.com/about/.
– erb
Mar 18 '14 at 13:58
7
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