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Abstract functions in Swift Language
...
or fatalError("This method must be overridden")
– nathan
Jun 8 '14 at 20:20
5
...
jQuery Validate - Enable validation for hidden fields
...ry, this could break an existing
setup. In the unlikely case that it actually does, you can fix it by
setting the ignore-option to “[]” (square brackets without the
quotes)."
To change this setting for all forms:
$.validator.setDefaults({
ignore: [],
// any other default option...
How do I prompt for Yes/No/Cancel input in a Linux shell script?
...is a simple demonstration:
while true; do
read -p "Do you wish to install this program?" yn
case $yn in
[Yy]* ) make install; break;;
[Nn]* ) exit;;
* ) echo "Please answer yes or no.";;
esac
done
Another method, pointed out by Steven Huwig, is Bash's select co...
What are “named tuples” in Python?
...
Named tuples are basically easy-to-create, lightweight object types. Named tuple instances can be referenced using object-like variable dereferencing or the standard tuple syntax. They can be used similarly to struct or other common record types...
How to concatenate properties from multiple JavaScript objects
...n Javascript.
The Object.assign() method is used to copy the values of all enumerable own properties from one or more source objects to a target object. It will return the target object.
MDN documentation on Object.assign()
var o1 = { a: 1 };
var o2 = { b: 2 };
var o3 = { c: 3 };
var...
MetadataException: Unable to load the specified metadata resource
...
I had a similar error. I had recreated the project (long story), and pulled everything over from the old project. I hadn't realized that my model had been in a directory called 'Model' before, and was now in a directory called 'Models'. O...
In WPF, what are the differences between the x:Name and Name attributes?
...ass, Name and x:Name can be used
interchangeably as attributes, but an
error will result if both are
specified on the same element.
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follo...
How can I rename a project folder from within Visual Studio?
...n VS2019. Gives warnings about project references not existing and compile errors about missing the namespaces and classes in the referenced project.
– Jeff Walker Code Ranger
May 12 at 17:57
...
Python Git Module experiences? [closed]
...tialized. However, trying to do what was suggested in the tutorial led to errors. Lacking more documentation, I turned elsewhere.
PyGit: This would not even import, and I could find no documentation.
Dulwich: Seems to be the most promising (at least for what I wanted and saw). I made some progr...
What's the _ underscore representative of in Swift References?
...ng, s2: String) -> String {
return s1 + s2;
}
}
When you call foo(), it is called like bar.foo("Hello", s2: "World").
But, you can override this behavior by using _ in front of s2 where it's declared.
func foo(s1: String, _ s2: String) -> String{
return s1 + s2;
}
Then, w...