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How can I create a unique constraint on my column (SQL Server 2008 R2)?
...leted successfully.
sp_help Customer
---> index
--index_name index_description index_keys
--PK__Customer__3213E83FCC4A1DFA clustered, unique, primary key located on PRIMARY id
---> constraint
--constraint_type constraint_name delete_action update_action status_enabled statu...
Using jQuery how to get click coordinates on the target element
...stion becomes useless in the future, I'd put the code for each and a brief description here :)
– Nick Craver♦
Jul 13 '10 at 11:25
2
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How to detect my browser version and operating system using JavaScript?
...tform.manufacturer; // 'Apple'
platform.layout; // 'WebKit'
// or use the description to put all together
platform.description; // 'Safari 5.1 on Apple iPad (iOS 5.0)'
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What is tail call optimization?
...
Probably the best high level description I have found for tail calls, recursive tail calls and tail call optimization is the blog post
"What the heck is: A tail call"
by Dan Sugalski. On tail call optimization he writes:
Consider, for a moment, th...
Freeze the top row for an html table only (Fixed Table Header Scrolling) [duplicate]
...alue</div>
</th>
<th>
Description
<div>Description</div>
</th>
</tr>
</thead>
<tbody>
<tr>
<td>align</td>
<td>...
_=> what does this underscore mean in Lambda expressions?
... apply to the parameters to be passed to the method, which should be named descriptively. Eg.: Do( id=>Log(id) );
The single-underscore-parameter usage for method calls is hardly justifiable when using a block of code instead of a one-liner, since the lambda identifier gets disconnected from its...
How should you build your database from source control?
...mise: All database changes (structure and data) are stored in an XML-based descriptive manner and checked into source control.
The good point, that DML changes are stored semantically, not just diff, so that you could track the purpose of the changes.
It could be combined with GIT version control ...
Custom CSS Scrollbar for Firefox
...re displayed.
You can set scrollbar-color to one of the following values (descriptions from MDN):
auto Default platform rendering for the track portion of the scrollbar, in the absence of any other related scrollbar color properties.
dark Show a dark scrollbar, which can be either a dark variant ...
What is the JavaScript >>> operator and how do you use it?
...
+2 in depth description and table, -1 because array.length validates itself and can't be arbitrarily set to anything that is not an integer or 0 (FF throws this error: RangeError: invalid array length).
– Justin Joh...
Check for array not empty: any?
...t; [11,22].size?
=> true
> [nil].size?
=> true
This is fairly descriptive, logically asking "does this object have a size?". And it's concise, and it doesn't require ActiveSupport. And it's easy to build on.
Some extras to think about:
This is not the same as present? from ActiveSupp...