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SecurityError: Blocked a frame with origin from accessing a cross-origin frame
...ava you don't need the ===, you already know that the variable type it's a string, so === is useless here.
– Marco Bonelli
Aug 3 '15 at 16:22
4
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Purpose of ESI & EDI registers?
...stination Index
As others have indicated, they have special uses with the string instructions. For real mode programming, the ES segment register must be used with DI and DS with SI as in
movsb es:di, ds:si
SI and DI can also be used as general purpose index registers. For example, the C sour...
For-each over an array in JavaScript
... from its prototype), and
That the key is all decimal digits (e.g., normal string form, not scientific notation), and
That the key's value when coerced to a number is <= 2^32 - 2 (which is 4,294,967,294). Where does that number come from? It's part of the definition of an array index in the speci...
Convert List to List
...e original question you could then use:
class Test
{
static void Main(string[] args)
{
A a = new C(); // OK
IList<A> listOfA = new List<C>().CastList<C,A>(); // now ok!
}
}
and here the wrapper class (+ an extention method CastList for easy use)
publ...
Html code as IFRAME source rather than a URL
...an do this with a data URL. This includes the entire document in a single string of HTML. For example, the following HTML:
<html><body>foo</body></html>
can be encoded as this:
data:text/html;charset=utf-8,%3Chtml%3E%3Cbody%3Efoo%3C/body%3E%3C/html%3E
and then set as ...
Replace a value if null or undefined in JavaScript
... If anything falsey is a potentially valid input (0, false, empty string), I would do something like this instead: var j = (i === null) ? 10 : i; Which will only replace null, rather than anything that can be evaluated to false.
– DBS
Sep 26 '16 at 11:...
Does PostgreSQL support “accent insensitive” collations?
...the function in the right expression. There you can also supply unaccented strings like 'Joao' directly.
The faster function does not translate to much faster queries using the expression index. That operates on pre-computed values and is very fast already. But index maintenance and queries not usi...
What characters can be used for up/down triangle (arrow without stem) for display in HTML?
...POINTING TRIANGLE
▼ - U+25BC BLACK DOWN-POINTING TRIANGLE
▴ - U+25B4 SMALL BLACK UP-POINTING TRIANGLE
▾ - U+25BE SMALL BLACK DOWN-POINTING TRIANGLE
For ▲ and ▼ use &#x25B2; and &#x25BC; respectively if you cannot include Unicode characters directly (use UTF-8!).
Note that the fo...
List comprehension on a nested list?
...t of lists, similar to what you started with except with floats instead of strings. If you want one flat list then you would use [float(y) for x in l for y in x].
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How do I enter RGB values into Interface Builder?
...bers do not spec a color, you also need to know the colorspace. It's like string encodings. 65 is the ASCII encoding of A. The colorspace with which to encode/decode the components is in the little dropdown to the left of "RGB" sliders above. The "Generic RGB" colorspace corresponds to colors made...