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How do I delete rows in a data frame?
...here may be other problems as I only spent a couple of minutes writing and testing it, and have only started using R in the last few weeks. Any comments and improvements on this would be very welcome!
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If my interface must return Task what is the best way to have a no-operation implementation?
...k you can use the same instance throughout the entire app domain.
The latest version of the .Net Framework (v4.6) adds just that with the Task.CompletedTask static property
Task completedTask = Task.CompletedTask;
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How to save an image to localStorage and display it on the next page?
...Id('tableBanner');
bannerImg.src = "data:image/png;base64," + dataImage;
Tested it in quite a few different browsers and versions, and it seems to work quite well.
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disable nganimate for some elements
...s, which follows Angular animate paradigm, you can configure ng-animate to test the class using regex.
Config
var myApp = angular.module("MyApp", ["ngAnimate"]);
myApp.config(function($animateProvider) {
$animateProvider.classNameFilter(/^(?:(?!ng-animate-disabled).)*$/);
})
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The name 'ConfigurationManager' does not exist in the current context
...ust that some are done for you and some you have to do manually. You could test it out by deleting the reference to your System dll and watching all your code fail. =)
– Kieran
Sep 2 '10 at 7:07
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Running Windows batch file commands asynchronously
... this the other day. I had to launch 30 explorer windows for a performance test. Didn't work and it wasn't important enough for me to look into it.. started browsing around instead in that window and several hours later when I closed it, another one poped up! And I was like what the hell, closed it....
Check for changes to an SQL Server table?
...QL via triggers, you could do the bulk of the work for them by writing and testing the triggers and then bringing the code to the application vendor. By having the vendor support the triggers, it prevent the situation where your adding a trigger inadvertently replaces a trigger supplied by the vend...
How to do joins in LINQ on multiple fields in single join
...y introducing the second join parameter. I do like the idea of ordering to test if I can get efficiency gains
– johnc
Dec 17 '08 at 12:55
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How does this program work?
... 00 4A 93 40
A %d consumes a 32-bit integer, so a zero is printed. (As a test, you could printf("%d, %d\n", 1234.5f); You could get on output 0, 1083394560.)
As for why the float is converted to double, as the prototype of printf is int printf(const char*, ...), from 6.5.2.2/7,
The ellipsi...
Setting up maven dependency for SQL Server
...ndency>
Answer for the "old" Microsoft:
For my use-case (integration testing) it was sufficient to use a system scope for the JDBC driver's dependency as such:
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>sqljdbc4</artifactId>
&...