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What's the difference between lists and tuples?
...ge and line number to reference locations in a book, e.g.:
my_location = (42, 11) # page number, line number
You can then use this as a key in a dictionary to store notes on locations. A list on the other hand could be used to store multiple locations. Naturally one might want to add or remove l...
Bootstrap: align input with button
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Twitter Bootstrap 4
In Twitter Bootstrap 4, inputs and buttons can be aligned using the input-group-prepend and input-group-append classes (see https://getbootstrap.com/docs/4.0/components/input-group/#button-addons)
Group button on the left...
css 'pointer-events' property alternative for IE
... KyleKyle
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Better naming in Tuple classes than “Item1”, “Item2”
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edited Mar 14 '17 at 14:11
answered Oct 13 '16 at 6:42
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Python's most efficient way to choose longest string in list?
...n documentation itself, you can use max:
>>> mylist = ['123','123456','1234']
>>> print max(mylist, key=len)
123456
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Big-O summary for Java Collections Framework implementations? [closed]
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Plot correlation matrix into a graph
...ttice)
#Build the horizontal and vertical axis information
hor <- c("214", "215", "216", "224", "211", "212", "213", "223", "226", "225")
ver <- paste("DM1-", hor, sep="")
#Build the fake correlation matrix
nrowcol <- length(ver)
cor <- matrix(runif(nrowcol*nrowcol, min=0.4), nrow=nrow...
Find all records which have a count of an association greater than zero
...s an example
[10] pry(main)> Comment.distinct.pluck :article_id
=> [43, 34, 45, 55, 17, 19, 1, 3, 4, 18, 44, 5, 13, 22, 16, 6, 53]
[11] pry(main)> _.size
=> 17
[12] pry(main)> Article.joins(:comments).size
=> 45
[13] pry(main)> Article.joins(:comments).distinct.size
=> 17
[1...
How to use JNDI DataSource provided by Tomcat in Spring?
... 8 JNDI Datasource HOW-TO
Tomcat 8 Context Resource Links Reference
Spring 4 JEE JNDI Lookup XML Schema Reference
Spring 4 JndiObjectFactoryBean Javadoc
Edit: This answer has been updated for Tomcat 8 and Spring 4. There have been a few property name changes for Tomcat's default datasource resour...
How to find time complexity of an algorithm
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How to find time complexity of an algorithm
You add up how many machine instructions it w...