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difference between iframe, embed and object elements
HTML5 defines several embedded content elements, which, from a bird's-eye view, seem to be very similar to the point of being largely identical.
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How to insert a newline in front of a pattern?
...In general, for $ followed by a string literal in single quotes bash performs C-style backslash substitution, e.g. $'\t' is translated to a literal tab. Plus, sed wants your newline literal to be escaped with a backslash, hence the \ before $. And finally, the dollar sign itself shouldn't be quoted ...
Check whether an input string contains a number in javascript
My end goal is to validate an input field. The input may be either alphabetic or numeric.
12 Answers
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How to make an app's background image repeat
I have set a background image in my app, but the background image is small and I want it to be repeated and fill in the whole screen. What should I do?
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How do I check if a type is a subtype OR the type of an object?
..., no.
Here's the options:
Use Type.IsSubclassOf
Use Type.IsAssignableFrom
is and as
Type.IsSubclassOf
As you've already found out, this will not work if the two types are the same, here's a sample LINQPad program that demonstrates:
void Main()
{
typeof(Derived).IsSubclassOf(typeof(Base))....
How to delete an old/unused Data Model Version in Xcode
How can I delete an old Data Model in Xcode? The option is disabled on the menu. (The models I want to delete have not been released to the public - they are interim development models.)
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Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
...vaScript style (key: value) is only useful if all of your Hash keys are "simple" symbols (more or less something that matches /\A[a-z_]\w*\z/i, AFAIK the parser uses its label pattern for these keys).
The :$in style symbols show up a fair bit when using MongoDB so you'll end up mixing Hash styles i...
Can you list the keyword arguments a function receives?
I have a dict, which I need to pass key/values as keyword arguments.. For example..
5 Answers
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IE10 renders in IE7 mode. How to force Standards mode?
On microsoft's site they claim that simple doctype declaration is enough. But even a document as short as this falls back to IE7 mode:
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What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?
I want to tackle some image-processing problems in Haskell. I'm working with both bitonal (bitmap) and color images with millions of pixels. I have a number of questions:
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