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Rails 4 Authenticity Token
...rking on a new Rails 4 app (on Ruby 2.0.0-p0) when I ran into some authenticity token problems.
13 Answers
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How do I find numeric columns in Pandas?
Let's say df is a pandas DataFrame.
I would like to find all columns of numeric type.
Something like:
11 Answers
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Use of Java's Collections.singletonList()?
What is the use of Collections.singletonList() in Java? I understand that it returns a list with one element. Why would I want to have a separate method to do that? How does immutability play a role here?
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How to remove the last character from a string?
I want to remove the last character from a string. I've tried doing this:
32 Answers
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Assigning variables with dynamic names in Java
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What is the reason for performing a double fork when creating a daemon?
I'm trying to create a daemon in python. I've found the following question , which has some good resources in it which I am currently following, but I'm curious as to why a double fork is necessary. I've scratched around google and found plenty of resources declaring that one is necessary, but not ...
reading from app.config file
I am trying to read StartingMonthColumn and CategoryHeadingColumn
from the below app.config file using the code
8 Answers
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Indexes of all occurrences of character in a string
The following code will print 2
14 Answers
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How to check “hasRole” in Java Code with Spring Security?
How to check user authority or permission in Java Code ? For example - I want to show or hide button for user depending on role. There are annotations like:
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Auto Scale TextView Text to Fit within Bounds
...ant to make sure it both wraps and is small enough to fit entirely on the screen.
34 Answers
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