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What is the difference between gsub and sub methods for Ruby Strings
I have been perusing the documentation for String today, and I saw the :sub method, which I'd never noticed before. I've been using :gsub and it appears that they are essentially the same. Can anyone explain the difference to me? Thanks!
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Spring 3 MVC accessing HttpRequest from controller
...s myself rather then leave it to spring @SessionAttributes , for login of cookies handling for example.
3 Answers
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how to hide a vertical scroll bar when not needed
I have a textarea which is contained in a div as I have jquery hint and wanted to use opacity without changing the border.
There is a visible vertical scroll bar how I only want this displayed when I am typing in the text field and it goes beyond the container. I have tried overflow: auto; but does ...
Update a column value, replacing part of a string
I have a table with the following columns in a MySQL database
6 Answers
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sbt-assembly: deduplication found error
I am not sure whether mergestrategy or exclude jars is the best option here. Any help with how do I proceed further with this error will be great!
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dplyr: “Error in n(): function should not be called directly”
I am attempting to reproduce one of the examples in the dplyr package but am getting this error message. I am expecting to see a new column n produced with the frequency of each combination. What am I missing? I triple checked that the package is loaded.
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How can I check if character in a string is a letter? (Python)
I know about islower and isupper , but can you check whether or not that character is a letter?
For Example:
6 Answers
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How do I get rid of this unwanted bar from Eclipse?
When coding in Eclipse(Indigo), I accidentally hit a combination of keys which made this bar appear when I was doing some shortcuts. This question has probably being answered before but since I don't know the exact name of the bar googling the problem has being fruitless. I've spent two hours trying...
Django - Circular model import issue
I'm really not getting this, so if someone could explain how this works I'd very much appreciate it. I have two applications, Accounts and Theme... here is my settings list:
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Check if string matches pattern
How do I check if a string matches this pattern?
6 Answers
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