Commas in path - .NET [duplicate] - windows

This question already has answers here:
Commas in WPF Pack URIs
(2 answers)
Closed 7 years ago.
I am working on some code that has paths that look like this:
"pack://application:,,,/FOO.Bar.Baz;component/Gorp/bazzle.xaml"
What do the 3 commas mean, and what is this path referencing?

Typically they are placeholders for parameters that were not supplied. It usually means ... "use the default values" for those parameters.

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What does ENV=${deploy-qa} mean in bash? How does it evaluate to "qa"? [duplicate]

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What does the '-' (dash) after variable names do here?
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Usage of :- (colon dash) in bash
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Closed 2 years ago.
ENV=${deploy-qa}
echo $ENV
qa
Relatively new to bash and I'm trying to set up a pipeline that switched based off the ending of a string and accidentally stumbled across this. I'm unsure how this actually returns 'qa' though. This is what I was looking to do, but I'd like to understand what's actually happening. I dont understand whats causing the 'deploy-' bit to drop off.

JSTL solution for providing space between capital letters [duplicate]

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How to call a static method in JSP/EL?
(9 answers)
Closed 5 years ago.
Is there any way to provide space between Capital Letters.
Eg. I have a jstl expression ${platName} which outputs AmazonEcho
What I need as output is Amazon Echo.
I tried a few jstl functions but it didn`t help.
Thanks, this worked
${platName.replaceAll("(\\p{Ll})(\\p{Lu})","$1 $2")}

How to read a specific line data [duplicate]

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VBScript to read specific line and extract characters and store it as a variable
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How to delete the first row in the .csv file
(2 answers)
Closed 5 years ago.
I want to read a specific line from the text file using VBScript.
I have explored Read and ReadLine methods but I can't able to read only specific line from text file. (I have 1000 of line but I want to read only 99 or 200 or 500 line only)
The question may be similar to the questions those duplicate hunters pointed to, but the answers are - for different reasons - of no use. A good answer could be build from one answer to the completely different question here.
Now to the answer:
Use a .SkipLine loop to read to the line before you are interested in and get it using .ReadLine.

How can I output the value of a concat value of scss? [duplicate]

This question already has answers here:
Is it possible to nest variables within variables in SASS?
(2 answers)
Closed 6 years ago.
When I have something like below
#{'$station-position-#{$station}'}
it outputs as
$station-position-1934
But I want it to output the value of $station-position-1969 . How can I do that?
Are you depending on your nested variables?
If not you can try structuring your data using scss lists.
Examples:
http://hugogiraudel.com/2013/07/15/understanding-sass-lists/

Splitting a string into blocks [duplicate]

This question already has answers here:
Split string into equal slices/chunks
(2 answers)
Closed 7 years ago.
I was wondering how I could program something to split a string into blocks of five using Ruby. Help much appreciated.
You can use String#scan method to achieve it. E.g 'string_test'.scan(/.{1,5}/)

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