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How do you delete an ActiveRecord object?
... before it deletes anything, it loads records. It's two SQL statements not one. Aside from the performance implications, this has concurrency implications too. The safer call skips callbacks; User.delete_all() will issue just a single DELETE FROM... command.
– Andrew Hodgkinson...
Intel HAXM installation error - This computer does not support Intel Virtualization Technology (VT-x
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This was the one that worked for me and a couple of my buddies that had the same problem, should be top answer.
– Isaac Zais
Jan 28 '15 at 16:35
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Spring CrudRepository findByInventoryIds(List inventoryIdList) - equivalent to IN clause
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what if I want to pass 2 paramemeters to my method one list and other a normal string , will that work? if yes how shall I name my method
– user3614936
Sep 24 '18 at 7:46
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How to add \newpage in Rmarkdown in a smart way?
I wonder if one could simply use LaTeX \newpage command in R markdown v2 in a different way than this:
3 Answers
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What is the best regular expression to check if a string is a valid URL?
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If you think that's bad, you should see the one for e-mail: ex-parrot.com/~pdw/Mail-RFC822-Address.html
– Peter Di Cecco
Jan 6 '10 at 19:27
12
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Can you run GUI applications in a Docker container?
...n the answer and any vnc client will do. In my case, I like the native osx one. (from finder, press command+K and connect to vnc://<docker ip>:<container exposed port>)
– creack
Nov 25 '14 at 15:08
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Convert SVG image to PNG with PHP
...which supports either SVG or VML, again depending on the browser.
Another one which may help: SVGWeb.
All of which means that you can support your IE users without having to resort to bitmap graphics.
See also the top answer to this question, for example: XSL Transform SVG to VML
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iOS forces rounded corners and glare on inputs
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The version I had working is:
input {
-webkit-appearance: none;
}
In some webkit browser versions, you may also be faced with the border-radius still being in place. Reset with the following:
input {
-webkit-border-radius:0;
border-radius:0;
}
This can be extended to apply...
Await on a completed task same as task.Result?
...the book.
Task.WhenAny returns Task<Task>, where the inner task is one of those you passed as arguments. It could be re-written like this:
Task<Task> anyTask = Task.WhenAny(downloadTask, timeoutTask);
await anyTask;
if (anyTask.Result == timeoutTask)
return null;
return download...
Java: How to test methods that call System.exit()?
...ules for testing code which uses java.lang.System.
This was initially mentioned by Stefan Birkner in his answer in December 2011.
System.exit(…)
Use the ExpectedSystemExit rule to verify that System.exit(…) is called.
You could verify the exit status, too.
For instance:
public void My...