大约有 12,000 项符合查询结果（耗时：0.0201秒） [XML]
Random shuffling of an array
....current();
for (int i = ar.length - 1; i > 0; i--)
{
int index = rnd.nextInt(i + 1);
// Simple swap
int a = ar[index];
ar[index] = ar[i];
ar[i] = a;
}
}
}
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Accessing @attribute from SimpleXML
...ode. You can then var_dump the return value of the function.
More info at php.net
http://php.net/simplexmlelement.attributes
Example code from that page:
$xml = simplexml_load_string($string);
foreach($xml->foo[0]->attributes() as $a => $b) {
echo $a,'="',$b,"\"\n";
}
...
Add a reference column migration in Rails 4
...t; ActiveRecord::Migration
def change
add_reference :uploads, :user, index: true
end
end
Then, run the migration using rake db:migrate.
This migration will take care of adding a new column named user_id to uploads table (referencing id column in users table), PLUS it will also add an index...
In an array of objects, fastest way to find the index of an object whose attributes match a search
...field' attribute:
var elementPos = array.map(function(x) {return x.id; }).indexOf(idYourAreLookingFor);
var objectFound = array[elementPos];
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How do I grant myself admin access to a local SQL Server instance?
I installed SQL Server 2008 R2 to my local machine. But, I can't create a new database because of rights (or lack of).
6 An...
How to modify the keyboard shortcuts in Eclipse IDE?
...noyed that in order to run an ant script I have to use Alt + Shift + x , q . But I think If I had this power I would many things I would change the shortcuts for/add shortcuts for things that don't currently have them.
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What is an MDF file? [closed]
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SQL Server databases use two files - an MDF file, known as the primary database file, which contains the schema and data, and a LDF file, which contains the logs. See wikipedia. A database may also use secondary database file,...
Compare two folders which has many files inside contents
...
To get summary of new/missing files, and which files differ:
diff -arq folder1 folder2
a treats all files as text, r recursively searched subdirectories, q reports 'briefly', only when files differ
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Ruby array to string conversion
...in("', '")}'"
Some string interpolation to add the first and last single quote :P
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Git diff - how to quit the diff listing [duplicate]
How do you quit git diff listing?
1 Answer
1
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