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How do you make sure email you send programmatically is not automatically marked as spam?
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340
Use email authentication methods, such as SPF, and DKIM to prove that your emails and your doma...
How do I enable/disable log levels in Android?
... WARN = LOGLEVEL > 1;
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public static boolean VERBOSE = LOGLEVEL > 4;
if (VERBOSE) Log.v(TAG, "Message here"); // Won't be shown
if (WARN) Log.w(TAG, "WARNING HERE"); // Still goes through
Later, you can just change the LOGLEVEL for all debug output level.
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Cast List to List in .NET 2.0
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edited Aug 16 '19 at 14:18
AustinWBryan
2,86133 gold badges1616 silver badges3535 bronze badges
answ...
How to re-create database for Entity Framework?
...Go to App_Data, right click and delete all ".mdf" files for this project.
4) Delete Migrations folder by right click and delete.
5) Go to SQL Server Management Studio, make sure the DB for this project is not there, otherwise delete it.
6) Go to Package Manager Console in Visual Studio and type:
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In mongoDb, how do you remove an array element by its index?
.... In fact, this is an open issue http://jira.mongodb.org/browse/SERVER-1014 , you may vote for it.
The workaround is using $unset and then $pull:
db.lists.update({}, {$unset : {"interests.3" : 1 }})
db.lists.update({}, {$pull : {"interests" : null}})
Update: as mentioned in some of the comment...
How to zip a whole folder using PHP
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Code updated 2015/04/22.
Zip a whole folder:
// Get real path for our folder
$rootPath = realp...
How can I create a copy of an Oracle table without copying the data?
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426
Just use a where clause that won't select any rows:
create table xyz_new as select * from xyz...
Java Can't connect to X11 window server using 'localhost:10.0' as the value of the DISPLAY variable
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answered Feb 25 '13 at 13:54
Maryam SaeidiMaryam Saeidi
1,13511 gold badge1616 silver badges2727 bronze badges
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Is there a simple way to delete a list element by value?
...element. Use a list comprehension for that.
>>> a = [10, 20, 30, 40, 20, 30, 40, 20, 70, 20]
>>> a = [x for x in a if x != 20]
>>> print(a)
[10, 30, 40, 30, 40, 70]
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How to format a number as percentage in R?
...percent")(x)
## [1] "-100 percent" "0 percent" "10 percent"
## [4] "56 percent" "100 percent" "10,000 percent"
An update, several years later:
These days there is a percent function in the scales package, as documented in krlmlr's answer. Use that instead of my hand-rolled ...