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How to map with index in Ruby?
...erator object (in 1.8.7+), which mixes in Enumerable, so you can call map, select, reject etc. on it just like on an array, hash, range etc.
– sepp2k
Jan 15 '11 at 1:45
9
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Removing path and extension from filename in powershell
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you can use basename property
PS II> ls *.ps1 | select basename
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How do I specify “close existing connections” in sql script
...RE @isStatAsyncOn bit
DECLARE @jobId int
DECLARE @sqlString nvarchar(500)
SELECT @dbId = database_id,
@isStatAsyncOn = is_auto_update_stats_async_on
FROM sys.databases
WHERE name = 'db_name'
IF @isStatAsyncOn = 1
BEGIN
ALTER DATABASE [db_name] SET AUTO_UPDATE_STATISTICS_ASYNC OFF
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Expand a random range from 1–5 to 1–7
...t a non-zero. That's what this code is doing: the i and j indexes randomly select a location on the dart board, and if we don't get a good result, we keep throwing darts.
Like Adam said, this can run forever in the worst case, but statistically the worst case never happens. :)
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How to combine multiple conditions to subset a data-frame using “OR”?
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filter(df, v1 < 0.5 | v2 == "g")
Using sqldf:
library(sqldf)
sqldf('SELECT *
FROM df
WHERE v1 < 0.5 OR v2 = "g"')
Output for the above options:
v1 v2
1 0.26550866 a
2 0.37212390 b
3 0.20168193 e
4 0.94467527 g
5 0.06178627 j
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SVN change username
...r Authentication Data, click on the clear button, and it will allow you to select which connection you wanted to clear userid/pwd for.
After you do this, any checkout or update activity, it will reprompt for the userid and password.
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Click Event on UIImageView programmatically in ios
...r *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapDetected)];
singleTap.numberOfTapsRequired = 1;
[preArrowImage setUserInteractionEnabled:YES];
[preArrowImage addGestureRecognizer:singleTap];
-(void)tapDetected{
NSLog(@"single Tap on imageview");
}
SWIF...
mysql: see all open connections to a given database?
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That should do the trick for the newest MySQL versions:
SELECT * FROM INFORMATION_SCHEMA.PROCESSLIST WHERE DB = "elstream_development";
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How to “set a breakpoint in malloc_error_break to debug”
...Navigator or ⌘8), clicking the plus button in the lower left corner, and selecting "Add Symbolic Breakpoint". In the popup that comes up, enter malloc_error_break in the Symbol field, then click Done.
EDIT: openfrog added a screenshot and indicated that he's already tried these steps without succe...
Set a path variable with spaces in the path in a Windows .cmd file or batch file
...art)
Run the Command Prompt as administrator (Right click on cmd.exe and select run as administrator)
In cmd
setx path "%path%;your new path"
then enter
Check whether the path is taken correctly by typing path and pressing enter
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