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What is the Linux equivalent to DOS pause?
...er presses a key. In DOS, this is easily accomplished with the "pause" command. Is there a Linux equivalent I can use in my script?
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Spring Boot application as a Service
... system? Is this recommended approach, or should I convert this app to war and install it into Tomcat?
19 Answers
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Programmatically creating Markdown tables in R with KnitR
I am just starting to learn about KnitR and the use of Markdown in generating R documents and reports. This looks to be perfect for a lot of the day to day reporting that I have to do with my job. However, one thing that I'm not seeing is an easy way to print data frames and tables using Markdown fo...
What's the $unwind operator in MongoDB?
...om your mind. The way that it stores your data is in the form of documents and collections, which allows for a dynamic means of adding and obtaining the data from your storage locations.
That being said, in order to understand the concept behind the $unwind parameter, you first must understand what...
Evaluate expression given as a string
...ied. For example, if you have a pre-defined variable name equal to "David" and you reassign using eval(parse(text = "name") == "Alexander", you will get an error because eval & parse do not return an R expression that can be evaluated.
– Crt
Aug 1 '16 at 22...
Create MSI or setup project with Visual Studio 2012
I create a small application and I would like to create one MSI file.
8 Answers
8
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What's the best way to communicate between view controllers?
Being new to objective-c, cocoa, and iPhone dev in general, I have a strong desire to get the most out of the language and the frameworks.
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Get top 1 row of each group
...nt to:
maintain status in 2 places
preserve status history
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As it stands, you preserve status history. If you want latest status in the parent table too (which is denormalisation) you'd need a trigger to maintain "status" in the parent. or drop this status history table.
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What is the ultimate postal code and zip regex?
I'm looking for the ultimate postal code and zip code regex. I'm looking for something that will cover most (hopefully all) of the world.
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Algorithm to find top 10 search terms
I'm currently preparing for an interview, and it reminded me of a question I was once asked in a previous interview that went something like this:
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