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Remove all special characters from a string [duplicate]
...nctions (which I find way inefficient - the one below is better) is that a service that shall not be named apparently ran spelling checks and keyword recognition on the URLs.
After losing a long time on a customer's paranoias, I found out they were not imagining things after all -- their SEO expert...
How to upgrade PowerShell version from 2.0 to 3.0
...trained file copying to/from JEA endpoints
JEA support for Group Managed Service Accounts and Conditional Access Policies
PowerShell console support for VT100 and redirecting stdin with interactive input
Support for catalog signed modules in PowerShell Get
Specifying which module version to ...
pandas GroupBy columns with NaN (missing) values
...n the Missing Data section of the docs:
NA groups in GroupBy are automatically excluded. This behavior is consistent with R, for example.
One workaround is to use a placeholder before doing the groupby (e.g. -1):
In [11]: df.fillna(-1)
Out[11]:
a b
0 1 4
1 2 -1
2 3 6
In [12]: df.fil...
How to sort in mongoose?
...t:{
date_added: -1 //Sort by Date Added DESC
}
},
function(err,allNews){
socket.emit('news-load', allNews); // Do something with the array of 10 objects
})
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How to read all files in a folder from Java?
How to read all the files in a folder through Java?
31 Answers
31
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What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]
...tf8_unicode_ci uses the standard Unicode Collation Algorithm, supports so called expansions and ligatures, for example:
German letter ß (U+00DF LETTER SHARP S) is sorted near "ss"
Letter Π(U+0152 LATIN CAPITAL LIGATURE OE) is sorted near "OE".
utf8_general_ci does not support expansions/liga...
Android 4.1: How to check notifications are disabled for the application?
...ntext) {
AppOpsManager mAppOps = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
ApplicationInfo appInfo = context.getApplicationInfo();
String pkg = context.getApplicationContext().getPackageName();
int uid = appInfo.uid;
Class appOpsC...
'UserControl' constructor with parameters in C#
Call me crazy, but I'm the type of guy that likes constructors with parameters (if needed), as opposed to a constructor with no parameters followed by setting properties. My thought process: if the properties are required to actually construct the object, they should go in the constructor. I get two...
How to remove convexity defects in a Sudoku square?
...surements[
ColorNegate@Binarize[srcAdjusted], {"ConvexArea", "Mask"}][[All,
2]];
largestComponent = Image[SortBy[components, First][[-1, 2]]]
By filling this image, I get a mask for the sudoku grid:
mask = FillingTransform[largestComponent]
Now, I can use a 2nd order derivative fil...
Install shows error in console: INSTALL FAILED CONFLICTING PROVIDER
...
If you are using Google Maps + Google Play Services inside a library project (especially if you recently migrated from Eclipse to Android Studio), you can encounter this error when you try to run an app that uses your library, while a different app that uses the same ...