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Rails server says port already used, how to kill that process?
I'm on a mac, doing:
12 Answers
12
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How to randomize (or permute) a dataframe rowwise and columnwise?
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Given the R data.frame:
> df1
a b c
1 1 1 0
2 1 0 0
3 0 1 0
4 0 0 0
Shuffle row-wise:
> df2 <- df1[sample(nrow(df1)),]
> df2
a b c
3 0 1 0
4 0 0 0
2 1 0 0
1 1 1 0
By default sample() randomly reorders th...
Convert String to SecureString
How to convert String to SecureString ?
13 Answers
13
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Unix command to prepend text to a file
Is there a Unix command to prepend some string data to a text file?
16 Answers
16
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Add custom messages in assert?
Is there a way to add or edit the message thrown by assert? I'd like to use something like
8 Answers
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Error in exception handler. - Laravel
It's a Laravel-install related question. I have a public-facing Unix server setup:
6 Answers
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How to force Selenium WebDriver to click on element which is not currently visible?
I am using Selenium 2 Java API with FirefoxDriver.
When I fill a form, checkboxes are added to the page depending the forms inputs.
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How can I return the current action in an ASP.NET MVC view?
I wanted to set a CSS class in my master page, which depends on the current controller and action. I can get to the current controller via ViewContext.Controller.GetType().Name , but how do I get the current action (e.g. Index , Show etc.)?
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Most pythonic way to delete a file which may not exist
...y would be:
try:
os.remove(filename)
except OSError:
pass
Although this takes even more lines and looks very ugly, it avoids the unnecessary call to os.path.exists() and follows the python convention of overusing exceptions.
It may be worthwhile to write a function to do this for you:
i...
Do you need text/javascript specified in your tags?
I read somewhere that you no longer need things like type="text/javascript" and the weird CDATA and <!-- things in your script tags. So, instead of:
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