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cscope or ctags why choose one over the other? [closed]
...
ctags enables two features: allowing you to jump from function calls to their definitions, and omni completion. The first means that when you are over a call to a method, hitting g] or CTRL-] will jump to the place where that method is defined or implemented. The second fea...
What is Hindley-Milner?
...e. The principal type of the list-length function is "for any a, function from list of a to integer". Here a is a so-called "type parameter," which is explicit in lambda calculus but implicit in most programming languages. The use of type parameters explains why Hindley-Milner is a system that im...
Why use symbols as hash keys in Ruby?
...access a hash, Ruby always applies a hash-function to compute a "hash-key" from whatever key you use. You can imagine something like an MD5-hash. And then Ruby compares those "hashed keys" against each other.
Long answer:
https://web.archive.org/web/20180709094450/http://www.reactive.io/tips/2009...
How do you change the server header returned by nginx?
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Like Apache, this is a quick edit to the source and recompile. From Calomel.org:
The Server: string is the header which
is sent back to the client to tell
them what type of http server you are
running and possibly what version.
This string is used by places like
Alexia and ...
git remote add with other SSH port
...e port inside the config file is one way you can withhold that information from collaborators (That's when you have multiple remotes, the deployment remote host is different from the internal Source Code repo).
– Ragunath Jawahar
Jun 25 '14 at 12:23
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How to create a new database using SQLAlchemy?
...eries in a transaction. To get around this, get the underlying connection from the engine:
>>> conn = engine.connect()
But the connection will still be inside a transaction, so you have to end the open transaction with a commit:
>>> conn.execute("commit")
And you can then pr...
What is the C# Using block and why should I use it? [duplicate]
What is the purpose of the Using block in C#? How is it different from a local variable?
9 Answers
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What exactly is an “open generic type” in .NET? [duplicate]
... check whether a type is an unbound generic type (generic type definition) from which you can construct bound types with the Type.IsGenericTypeDefinition property:
Console.WriteLine(typeof(Dictionary<,>).IsGenericTypeDefinition); // True
Console.WriteLine(typeof(Dictionary<int,int>).IsGe...
The Guava library: What are its most useful and/or hidden features? [closed]
...).or(inRange('A','Z'));
or
String phoneNumber = CharMatcher.DIGIT.retainFrom("my phone number is 123456789");
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Two way/reverse map [duplicate]
...namely the python package bidict. It's extremely straight forward to use:
from bidict import bidict
map = bidict(Bob = "Alice")
print(map["Bob"])
print(map.inv["Alice"])
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