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Getting DOM elements by classname
...
because class can have more than one class for example: <a class="my-link link-button nav-item">.
– prodigitalson
Jun 17 '11 at 1:43
2
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How do I see all foreign keys to a table or column?
...
INFORMATION_SCHEMA.KEY_COLUMN_USAGE
WHERE
REFERENCED_TABLE_SCHEMA = '<database>' AND
REFERENCED_TABLE_NAME = '<table>';
For a Column:
SELECT
TABLE_NAME,COLUMN_NAME,CONSTRAINT_NAME, REFERENCED_TABLE_NAME,REFERENCED_COLUMN_NAME
FROM
INFORMATION_SCHEMA.KEY_COLUMN_USAGE
WHERE
...
What should a Multipart HTTP request with multiple files look like? [duplicate]
I'm working on an iPhone app that makes a multipart HTTP request with multiple image files.
2 Answers
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Lambda function in list comprehensions
...e squaring function, see:
>>> [lambda x: x*x for _ in range(3)]
[<function <lambda> at 0x00000000023AD438>, <function <lambda> at 0x00000000023AD4A8>, <function <lambda> at 0x00000000023AD3C8>]
Note the memory addresses of the lambdas - they are all diff...
CSS I want a div to be on top of everything
...osition as fixed but still set the z-index to 1000 and got the desired results, it covered a div lower on the page as I scrolled, can you explain why that happened even though I was using a static position?
– Boo89100
Jul 28 '16 at 15:51
...
Style disabled button with CSS
...-color: #cccccc;
color: #666666;
}
div {
padding: 5px 10px;
}
<div>
<button> This is a working button </button>
</div>
<div>
<button disabled> This is a disabled button </button>
</div>
...
How do I put hint in a asp:textbox
... attribute. Use it like any other attribute inside your ASP.net control:
<asp:textbox id="txtWithHint" placeholder="hint" runat="server"/>
Don't bother about your IDE (i.e. Visual Studio) maybe not knowing the attribute. Attributes which are not registered with ASP.net are passed through an...
Covariance, Invariance and Contravariance explained in plain English?
...if neither of the above holds
Let's consider an example. Let f(A) = List<A> where List is declared by
class List<T> { ... }
Is f covariant, contravariant, or invariant? Covariant would mean that a List<String> is a subtype of List<Object>, contravariant that a List<O...
Seeding the random number generator in Javascript
...to initialize your PRNGs properly. Most of the generators below have no built-in seed generating procedure (for sake of simplicity), but accept one or more 32-bit values as the initial state of the PRNG. Similar seeds (e.g. a simple seed of 1 and 2) can cause correlations in weaker PRNGs, resulting ...
Is there a fixed sized queue which removes excessive elements?
...d.
Example for a queue with max 10 elements:
queue = new LinkedHashMap<Integer, String>()
{
@Override
protected boolean removeEldestEntry(Map.Entry<Integer, String> eldest)
{
return this.size() > 10;
}
};
If the "removeEldestEntry" returns true...