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How to use SCNetworkReachability in Swift
... imported C structs have a default initializer in Swift, which initializes all of the struct's fields to zero, so the socket address structure can be initialized with
var zeroAddress = sockaddr_in()
sizeofValue() gives the size of this structure, this has
to be converted to UInt8 for sin_len:
zer...
What's the best way to validate an XML file against an XSD file?
... JDK 6 uses SAX parser with a StreamSource. A JAXP implementation could legally use a DOM parser in this case, but there is no reason to. If you use a DOM parser explicitly for validation, you will definitely instantiate a DOM tree.
– McDowell
Jul 21 '12 at 14:...
Can an array be top-level JSON-text?
...etes RFC 4627), and ECMA-404. They differ in which top-level elements they allow, but all allow an object or an array as the top-level element.
RFC 4627: Object or array. "A JSON text is a serialized object or array."
RFC 7159: Any JSON value. "A JSON text is a serialized value."
ECMA-404: Any JS...
How to rotate the background image in the container?
...
fyi, it doesn't work for all elements; for example, a select can't have a :before.
– Yann Dìnendal
Apr 10 '15 at 14:41
1
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How to use ArgumentCaptor for stubbing?
...n is a different story. If your test needs to ensure that this method was called with a specific argument, use ArgumentCaptor and this is the case for which it is designed:
ArgumentCaptor<SomeClass> argumentCaptor = ArgumentCaptor.forClass(SomeClass.class);
verify(someObject).doSomething(argu...
Most efficient way to concatenate strings in JavaScript?
...once.
is wrong, because it's based on a flawed test. That test never actually appends into the DOM.
This fixed test shows that creating the string all at once before rendering it is much, MUCH faster. It's not even a contest.
(Sorry this is a separate answer, but I don't have enough rep to comme...
Proper use of errors
... It seems to be missing a more general type for invalid argument. Not all invalid arguments fall under RangeError. Should you define custom types or just throw new Error("<message>");?
– anddero
Apr 5 at 7:39
...
How do .gitignore exclusion rules actually work?
...so git won't look inside) instead of the files within the directory (which allows for the exclusion).
Think of the exclusions as saying "but not this one" rather than "but include this" - "ignore this directory (/a/b/c/) but not this one (foo)" doesn't make much sense; "ignore all files in this dir...
Send POST Request with Data Specified in File via Curl
...l" \
--data-binary "@path/to/file"
In the example above, -i prints out all the headers so that you can see what's going on, and -X POST makes it explicit that this is a post. Both of these can be safely omitted without changing the behaviour on the wire. The path to the file needs to be preced...
__proto__ VS. prototype in JavaScript
...x = x;
this.y = y;
}
var myPoint = new Point();
// the following are all true
myPoint.__proto__ == Point.prototype
myPoint.__proto__.__proto__ == Object.prototype
myPoint instanceof Point;
myPoint instanceof Object;
Here Point is a constructor function, it builds an object (data structure) p...