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Jackson and generic type reference
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This is a well-known problem with Java type erasure: T is just a type variable, and you must indicate actual class, usually as Class argument. Without such information, best that can be done is to use bounds; and plain T is roughly same as 'T extends Obje...
Read a text file using Node.js?
I need to pass in a text file in the terminal and then read the data from it, how can I do this?
5 Answers
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'typeid' versus 'typeof' in C++
...nguage operator which returns type identification information at run time. It basically returns a type_info object, which is equality-comparable with other type_info objects.
Note, that the only defined property of the returned type_info object has is its being equality- and non-equality-comparable...
Parse usable Street Address, City, State, Zip from a string [closed]
... a normalized table. I need to do this for approximately 4,000 records and it needs to be repeatable.
24 Answers
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Split (explode) pandas dataframe string entry to separate rows
...h one column of text strings contains comma-separated values. I want to split each CSV field and create a new row per entry (assume that CSV are clean and need only be split on ','). For example, a should become b :
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What does .SD stand for in data.table in R
.SD looks useful but I do not really know what I am doing with it. What does it stand for? Why is there a preceding period (full stop). What is happening when I use it?
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Golang production web application configuration
..., you may want to use a reverse proxy in front of your Go program, so that it listens on port 80 and and connects to your program on port, say, 4000. There are many reason for doing the latter: not having to run your Go program as root, serving other websites/services on the same host, SSL terminati...
What does each of the [y,n,q,a,d,/,K,j,J,g,e,?] stand for in context of git -p
When using -p mode of git add -p or git stash -p what does each of the letters stand for?
2 Answers
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Connect Java to a MySQL database
... a fairly old way of doing things. The better way is to get a DataSource, either by looking one up that your app server container already configured for you:
Context context = new InitialContext();
DataSource dataSource = (DataSource) context.lookup("java:comp/env/jdbc/myDB");
or instantiating an...
Python naming conventions for modules
...alled "nib". (and a few related classes too.) How should I call the module itself? "nib"? "nibmodule"? Anything else?
6 Ans...