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How to check if a float value is a whole number
...1/3 is 0 (floor division for integer operands!), and that floating point arithmetic can be imprecise (a float is an approximation using binary fractions, not a precise real number). But adjusting your loop a little this gives:
>>> for n in range(12000, -1, -1):
... if (n ** (1.0/3)).is...
Why does pattern matching in Scala not work with variables?
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What you're looking for is a stable identifier. In Scala, these must either start with an uppercase letter, or be surrounded by backticks.
Both of these would be solutions to your problem:
def mMatch(s: String) = {
val target: String = "a"
s match {
case `target` => println...
When would you use .git/info/exclude instead of .gitignore to exclude files?
I am a bit confused about the pros and cons of using .git/info/exclude and .gitignore to exclude files.
4 Answers
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Return rows in random order [duplicate]
Is it possible to write SQL query that returns table rows in random order every time the query run?
6 Answers
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Indentation in Go: tabs or spaces?
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The official recommendation is formatting your code with
go fmt
or using the gofmt command directly
gofmt -w .
You can read more about it here on the golang.org blog, or from the Effective go document:
Indentation
We use tabs for indentation and gofmt emits them by...
How do I find out which process is locking a file using .NET?
I've seen several of answers about using Handle or Process Monitor , but I would like to be able to find out in my own code (C#)
which process is locking a file.
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Can I add jars to maven 2 build classpath without installing them?
...s
Most of the answers you'll find around the internet will suggest you to either install the dependency to your local repository or specify a "system" scope in the pom and distribute the dependency with the source of your project. But both of these solutions are actually flawed.
Why you shouldn't ap...
How to create a template function within a class? (C++)
I know it's possible to make a template function:
4 Answers
4
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Should I use static_cast or reinterpret_cast when casting a void* to whatever
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Use static_cast: it is the narrowest cast that exactly describes what conversion is made here.
There’s a misconception that using reinterpret_cast would be a better match because it means “completely ignore type safety and just cast fro...
How to access a preexisting collection with Mongoose?
...collection of 300 question objects in a database test . I can interact with this collection easily through MongoDB's interactive shell; however, when I try to get the collection through Mongoose in an express.js application I get an empty array.
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