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Find and extract a number from a string
... NOTE: If the string contains multiple numbers, this answer will run them all together into a single number. E.g. "a12bcd345" results in "12345". (Which may be desirable or not, depending on the goal.) This is different than the top-voted Regex solution, which would return "12" for the case above. ...
Should I always return IEnumerable instead of IList?
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It really depends on why you are using that specific interface.
For example, IList<T> has several methods that aren't present in IEnumerable<T>:
IndexOf(T item)
Insert(int index, T item)
RemoveAt(int index)
and Pr...
Change the mouse cursor on mouse over to anchor-like style
... $(document).ready() or body onload: (replace myClass with whatever class all of your divs share)
$('.myClass').css('cursor', 'pointer');
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Why should you use an ORM? [closed]
... of ORM's, I'd propose that the use-case is fairly limited. I have never really used anything but MySql and sqlite for about a decade. I think it's probably a very rare requirement for most developers.
– troelskn
Dec 29 '09 at 12:44
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XML parsing of a variable string in JavaScript
...cript framework like jQuery to handle the cross-browsers differences.
A really basic example is:
var xml = "<music><album>Beethoven</album></music>";
var result = $(xml).find("album").text();
Note: As pointed out in comments; jQuery does not really do any XML parsing wha...
How do I find which transaction is causing a “Waiting for table metadata lock” state?
...S
We can use INFORMATION_SCHEMA Tables.
Useful Queries
To check about all the locks transactions are waiting for:
USE INFORMATION_SCHEMA;
SELECT * FROM INNODB_LOCK_WAITS;
A list of blocking transactions:
SELECT *
FROM INNODB_LOCKS
WHERE LOCK_TRX_ID IN (SELECT BLOCKING_TRX_ID FROM INNODB_L...
Disable Enable Trigger SQL server for a table
...nswered Sep 7 '09 at 7:54
Wael DalloulWael Dalloul
19.4k1111 gold badges4444 silver badges5555 bronze badges
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Debugging iframes with Chrome developer tools
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In the Developer Tools in Chrome, there is a bar along the top, called the Execution Context Selector (h/t felipe-sabino), just under the Elements, Network, Sources... tabs, that changes depending on the context of the current tab. When in the Console tab there is a dropdown in that bar t...
What is the difference between a User Control Library and a Custom Control Library?
... control base classes and provide additional functionality through code so all the added logic and representation must be implemented inside the code.
A user control is technically a normal content control which you can extend in some parts in the code but usually it is extended by placing other c...
Java's Interface and Haskell's type class: differences and similarities?
...d say that an interface is kind of like a type class SomeInterface t where all of the values have the type t -> whatever (where whatever does not contain t). This is because with the kind of inheritance relationship in Java and similar languages, the method called depends on the type of object th...