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Why do C and C++ compilers allow array lengths in function signatures when they're never enforced?
...true but it is also possible to pass an array of just that size using void foo(int (*somearray)[20]) syntax. in this case 20 is enforced on the caller sites.
– v.oddou
Mar 28 '14 at 3:11
...
What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
...uct.
The concrete behavioural differences between them include:
rescue Foo will rescue instances of Foo including subclasses of Foo. catch(foo) will only catch the same object, Foo. Not only can you not pass catch a class name to catch instances of it, but it won't even do equality comparisons. ...
All possible array initialization syntaxes
...ns that can be assigned with the var keyword can be passed as arguments.
Foo(new int[2])
Foo(new int[2] { 1, 2 })
Foo(new int[] { 1, 2 })
Foo(new[] { 1, 2 })
Foo({ 1, 2 }) is not compilable
Foo(new int[0])
Foo(new int[] { })
Foo({}) is not compilable
...
how to specify local modules as npm package dependencies
.... For example:
{
"name": "baz",
"dependencies": {
"bar": "file:../foo/bar"
}
}
Any of the following paths are also valid:
../foo/bar
~/foo/bar
./foo/bar
/foo/bar
syncing updates
Since npm install copies mymodule into node_modules, changes in mymodule's source will not automatic...
Access index of the parent ng-repeat from child ng-repeat
I want to use the index of the parent list (foos) as an argument to a function call in the child list (foos.bars).
6 Answer...
Why doesn't a python dict.update() return the object?
...y is that otherwise, you may get undesirable side effects. Consider
bar = foo.reverse()
If reverse (which reverses the list in-place) would also return the list, users may think that reverse returns a new list which gets assigned to bar, and never notice that foo also gets modified. By making rev...
Spring Test & Security: How to mock authentication?
...edAuthority("ROLE_USER"),
new SimpleGrantedAuthority("PERM_FOO_READ")
));
User managerUser = new UserImpl("Manager User", "manager@company.com", "password");
UserActive managerActiveUser = new UserActive(managerUser, Arrays.asList(
new SimpleG...
Which regular expression operator means 'Don't' match this character?
...ch a, b, c or 0: [^a-c0]
The latter: match any three-letter string except foo and bar:
(?!foo|bar).{3}
or
.{3}(?<!foo|bar)
Also, a correction for you: *, ? and + do not actually match anything. They are repetition operators, and always follow a matching operator. Thus, a+ means match one or ...
Django: Get an object form the DB, or 'None' if nothing matches
...
There are two ways to do this;
try:
foo = Foo.objects.get(bar=baz)
except model.DoesNotExist:
foo = None
Or you can use a wrapper:
def get_or_none(model, *args, **kwargs):
try:
return model.objects.get(*args, **kwargs)
except model.DoesNo...
ASP.NET MVC: Custom Validation by DataAnnotation
...ength(20, "Bar", "Baz", ErrorMessage = "The combined minimum length of the Foo, Bar and Baz properties should be longer than 20")]
public string Foo { get; set; }
public string Bar { get; set; }
public string Baz { get; set; }
}
...