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C#/Linq: Apply a mapping function to each element in an IEnumerable?
...
You can just use the Select() extension method:
IEnumerable<int> integers = new List<int>() { 1, 2, 3, 4, 5 };
IEnumerable<string> strings = integers.Select(i => i.ToString());
Or in LINQ syntax:
IEnumerable<int> in...
SQL Server 2005 How Create a Unique Constraint?
... you want to do it from a Database Diagram:
right-click on the table and select 'Indexes/Keys'
click the Add button to add a new index
enter the necessary info in the Properties on the right hand side:
the columns you want (click the ellipsis button to select)
set Is Unique to Yes
give it an app...
In Python, how do I read the exif data for an image?
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I use this:
import os,sys
from PIL import Image
from PIL.ExifTags import TAGS
for (k,v) in Image.open(sys.argv[1])._getexif().items():
print('%s = %s' % (TAGS.get(k), v))
or to get a specific field:
def get_field (exif,field) :
for (k,v) i...
Facebook App: localhost no longer works as app domain
...working on localhost, port 3000 I did the following:
Create App
Now Select "+ Create Test App" from the arrow dropdown (top left).
Add localhost to App Domains
Add http://localhost:3000/ to Site URL by selected "+ Add Platform"
Up to this point I had followed all previous answer...
Chrome: console.log, console.debug are not working
... of today, the UI of developer tools in Google chrome has changed where we select the log level of log statements being shown in the console. There is a logging level drop down beside "Filter" text box. Supported values are Verbose, Info, Warnings and Errors with Info being the default selection.
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How do I make Git ignore file mode (chmod) changes?
...
Try:
git config core.fileMode false
From git-config(1):
core.fileMode
Tells Git if the executable bit of files in the working tree
is to be honored.
Some filesystems lose the executable bit when a file that is
marked as executable is checked ...
Splitting a string into chunks of a certain size
...unkSize)
{
return Enumerable.Range(0, str.Length / chunkSize)
.Select(i => str.Substring(i * chunkSize, chunkSize));
}
Please note that additional code might be required to gracefully handle edge cases (null or empty input string, chunkSize == 0, input string length not divisible by...
How would I skip optional arguments in a function call?
...llowing:
function getData($name, $limit = '50', $page = '1') {
return "Select * FROM books WHERE name = $name AND page = $page limit $limit";
}
echo getData('some name', '', '23'); // won't work as expected
The output will be:
"Select * FROM books WHERE name = some name AND page = 23 limit"
...
What is a Proxy in Doctrine 2?
...protected $lastname;
// bunch of setters/getters here
}
DQL query:
SELECT u.id, u.username FROM Entity\User u WHERE u.id = :id
As you can see this query doesn't return firstname and lastname properties, therefore you cannot create User object. Creation of incomplete entity could lead to un...
How can I uninstall an application using PowerShell?
...ause of Get-WmiObject: $app = Get-WmiObject -Class Win32_Product -filter "select * from Win32_Product WHERE name = 'Software Name'"
– Rob Paterson
Sep 22 '08 at 7:44
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