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Regular expression to match any character being repeated more than 10 times
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PHP's preg_replace example:
$str = "motttherbb fffaaattther";
$str = preg_replace("/([a-z])\\1/", "", $str);
echo $str;
Here [a-z] hits the character, () then allows it to be used with \\1 backreference which tries to matc...
Data structure: insert, remove, contains, get random element, all at O(1)
... in the array.
insert(value): append the value to array and let i be its index in A. Set H[value]=i.
remove(value): We are going to replace the cell that contains value in A with the last element in A. let d be the last element in the array A at index m. let i be H[value], the index in the array o...
Eclipse jump to closing brace
...changing perspectives makes it work again. So, for example, when I have a PHP file open, but, say, the Java perspective active, pressing Ctrl + Shift + P does nothing. For the same file with the PHP perspective active, pressing Ctrl + Shift + P does exactly what you'd expect and puts my cursor bes...
Fast permutation -> number -> permutation mapping algorithms
...d.
a, the first element, ends up at the second position, so we assign it index 1.
b ends up at the fourth position, which would be index 3, but it's the third remaining one, so we assign it 2.
c ends up at the first remaining position, which is always 0.
d ends up at the last remaining position, ...
How can I create a unique constraint on my column (SQL Server 2008 R2)?
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To create these constraints through the GUI you need the "indexes and keys" dialogue not the check constraints one.
But in your case you just need to run the piece of code you already have. It doesn't need to be entered into the expression dialogue at all.
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boost Composite keys - C/C++ - 清泛网 - 专注C/C++及内核技术
...n two or more fields of a given table The analogous concept in Boost MultiIndex is Composite keys
In relational databases, composite keys depend on two or more fields of a given table. The analogous concept in Boost.MultiIndex is modeled by means of composite_key, as shown in the example:
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How to sort findAll Doctrine's method?
...tion is very simple (vendor/doctrine/orm/lib/Doctrine/ORM/EntityRepository.php):
public function findAll()
{
return $this->findBy(array());
}
So we look at findBy and find what we need (orderBy)
public function findBy(array $criteria, array $orderBy = null, $limit = null, $offset = null)
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Insert an element at a specific index in a list and return the updated list
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l.insert(index, obj) doesn't actually return anything. It just updates the list.
As ATO said, you can do b = a[:index] + [obj] + a[index:].
However, another way is:
a = [1, 2, 4]
b = a[:]
b.insert(2, 3)
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Entity Framework code first unique column
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In Entity Framework 6.1+ you can use this attribute on your model:
[Index(IsUnique=true)]
You can find it in this namespace:
using System.ComponentModel.DataAnnotations.Schema;
If your model field is a string, make sure it is not set to nvarchar(MAX) in SQL Server or you will see this er...
How does Stack Overflow generate its SEO-friendly URLs?
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For good measure, here's the PHP function in WordPress that does it... I'd think that WordPress is one of the more popular platforms that uses fancy links.
function sanitize_title_with_dashes($title) {
$title = strip_tags($title);
...