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Repeat string to certain length
...)
'abcabcabc'
Then, you can trim it to the exact length you want with an array slice:
def repeat_to_length(s, wanted):
return (s * (wanted//len(s) + 1))[:wanted]
>>> repeat_to_length('abc', 7)
'abcabca'
Alternatively, as suggested in pillmod's answer that probably nobody scrolls d...
Difference between null and empty (“”) Java String
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Does this apply to C# also? As in ""'s array is {'\0'}, a null
– Cole Johnson
Aug 17 '12 at 22:32
3
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SQL Data Reader - handling Null column values
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For a string you can simply cast the object version (accessed using the array operator) and wind up with a null string for nulls:
employee.FirstName = (string)sqlreader[indexFirstName];
or
employee.FirstName = sqlreader[indexFirstName] as string;
For integers, if you cast to a nullable int,...
PHP how to get local IP of system
... This answer is WAY better than the others. Any reliance on the $_SERVER array is dependent on this running under Apache. This idea also works on a cron job. I'm using it to only execute certain functions if a server is running on the staging or the production LAN. Perfect!
–...
DbEntityValidationException - How can I easily tell what caused the error?
...ls. The validation errors are: The field PhoneNumber
must be a string or array type with a maximum length of '12'; The
LastName field is required.
You can drop the overridden SaveChanges in any class that inherits from DbContext:
public partial class SomethingSomethingEntities
{
public ov...
C/C++ line number
...N__ were treated as string literals; they could be used to initialize char arrays, and they could be concatenated with other string literals. GCC 3.4 and later treat them as variables, like __func__. In C++, __FUNCTION__ and __PRETTY_FUNCTION__ have always been variables."
– Jo...
Haversine Formula in Python (Bearing and Distance between two GPS points)
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There is also a vectorized implementation, which allows to use 4 numpy arrays instead of scalar values for coordinates:
def distance(s_lat, s_lng, e_lat, e_lng):
# approximate radius of earth in km
R = 6373.0
s_lat = s_lat*np.pi/180.0
s_lng = np.deg2rad(s_lng...
How to clear Facebook Sharer cache?
..._RETURNTRANSFER, true );
curl_setopt( $ch, CURLOPT_POST, true );
$params = array(
'id' => '<update_url>',
'scrape' => true );
$data = http_build_query( $params );
curl_setopt( $ch, CURLOPT_POSTFIELDS, $data );
curl_exec( $ch );
$httpCode = curl_getinfo( $ch, CURLINFO_HTTP_CODE )...
AngularJS For Loop with Numbers & Ranges
...amic range.
var range = _.range(1, 11);
// val will be each number in the array not the index.
<div ng-repeat='val in range'>
{{ $index }}: {{ val }}
</div>
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Apply a function to every row of a matrix or a data frame
...ens, mu=c(-1,1), rho=0.6)
apply() can also be used on higher dimensional arrays and the MARGIN argument can be a vector as well as a single integer.
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