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Understanding what 'type' keyword does in Scala
I am new to Scala and I could not really find a lot about the type keyword. I am trying to understand what the following expression may mean:
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Scala actors: receive vs react
...come interested in functional languages. Recently I've started looking at Scala, which seems like a very nice language.
5 A...
Overlaying histograms with ggplot2 in R
...are visible through each other. So you probably want to use three separate calls to geom_histogram, where each one gets it's own data frame and fill:
ggplot(histogram, aes(f0)) +
geom_histogram(data = lowf0, fill = "red", alpha = 0.2) +
geom_histogram(data = mediumf0, fill = "blue", alpha...
How Do I Fetch All Old Items on an RSS Feed?
I've been experimenting with writing my own RSS reader. I can handle the "parse XML" bit. The thing I'm getting stuck on is "How do I fetch older posts?"
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Python naming conventions for modules
I have a module whose purpose is to define a class called "nib". (and a few related classes too.) How should I call the module itself? "nib"? "nibmodule"? Anything else?
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Typescript: difference between String and string
... using the String object.
string is the TypeScript string type, which you can use to type variables, parameters and return values.
Additional notes...
Currently (Feb 2013) Both s1 and s2 are valid JavaScript. s3 is valid TypeScript.
Use of String. You probably never need to use it, string litera...
What is a 'semantic predicate' in ANTLR?
What is a semantic predicate in ANTLR?
2 Answers
2
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What is a Proxy in Doctrine 2?
...ery:
SELECT u.id, u.username FROM Entity\User u WHERE u.id = :id
As you can see this query doesn't return firstname and lastname properties, therefore you cannot create User object. Creation of incomplete entity could lead to unexpected errors.
That's why Doctrine will create UserProxy object th...
What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?
I can take a guess based on the names, but what specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?
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Is python's sorted() function guaranteed to be stable?
...n that it should be returning the original [(1, 2), (1, 1)] input? In that case, you have be explicit and say sorted([(1, 2), (1, 1)], key=lambda t: t[0])
– code_dredd
Sep 1 '17 at 0:38
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